diff --git a/runtime/syntax/testdir/dumps/vim9_expr_01.dump b/runtime/syntax/testdir/dumps/vim9_expr_01.dump
index 2b7cc6f..2640987 100644
--- a/runtime/syntax/testdir/dumps/vim9_expr_01.dump
+++ b/runtime/syntax/testdir/dumps/vim9_expr_01.dump
@@ -17,4 +17,4 @@
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 |e+0#af5f00255&|c|h|o| +0#0000000&|{+0#e000e06&| +0#0000000&|f+0#00e0e07&|o@1|:+0#0000000&| |{+0#e000e06&| +0#0000000&@3|4+0#e000002&|2|:+0#0000000&| |2+0#e000002&|1| +0#0000000&|*+0#af5f00255&| +0#0000000&|2+0#e000002&| +0#0000000&|}+0#e000e06&| +0#0000000&|}+0#e000e06&| +0#0000000&@43
-@57|1|9|,|1| @10|8|%| 
+@57|1|9|,|1| @10|6|%| 
diff --git a/runtime/syntax/testdir/dumps/vim9_expr_02.dump b/runtime/syntax/testdir/dumps/vim9_expr_02.dump
index 9ef64ac..b097b4f 100644
--- a/runtime/syntax/testdir/dumps/vim9_expr_02.dump
+++ b/runtime/syntax/testdir/dumps/vim9_expr_02.dump
@@ -17,4 +17,4 @@
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-@57|3|7|,|1| @9|1|9|%| 
+@57|3|7|,|1| @9|1|6|%| 
diff --git a/runtime/syntax/testdir/dumps/vim9_expr_03.dump b/runtime/syntax/testdir/dumps/vim9_expr_03.dump
index 2995ab3..c99a759 100644
--- a/runtime/syntax/testdir/dumps/vim9_expr_03.dump
+++ b/runtime/syntax/testdir/dumps/vim9_expr_03.dump
@@ -17,4 +17,4 @@
 @75
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-@57|5@1|,|1| @9|3|0|%| 
+@57|5@1|,|1| @9|2|6|%| 
diff --git a/runtime/syntax/testdir/dumps/vim9_expr_04.dump b/runtime/syntax/testdir/dumps/vim9_expr_04.dump
index f7d5310..ffce205 100644
--- a/runtime/syntax/testdir/dumps/vim9_expr_04.dump
+++ b/runtime/syntax/testdir/dumps/vim9_expr_04.dump
@@ -1,20 +1,20 @@
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 @75
-|#+0#0000e05&| |O|p|e|r|a|t|o|r|s| +0#0000000&@63
+|"| |R|e|g|i|s|t|e|r| @64
 @75
-|#+0#0000e05&| |T|e|r|n|a|r|y| +0#0000000&@65
-> @74
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 @75
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-@57|7|3|,|0|-|1| @7|4|1|%| 
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+@57|7|3|,|1| @9|3|5|%| 
diff --git a/runtime/syntax/testdir/dumps/vim9_expr_05.dump b/runtime/syntax/testdir/dumps/vim9_expr_05.dump
index dd431b9..2c94974 100644
--- a/runtime/syntax/testdir/dumps/vim9_expr_05.dump
+++ b/runtime/syntax/testdir/dumps/vim9_expr_05.dump
@@ -1,20 +1,20 @@
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 @75
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+|#+0#0000e05&| |O|p|e|r|a|t|o|r|s| +0#0000000&@63
 @75
-|#+0#0000e05&| |F|a|l|s|y| +0#0000000&@67
+|#+0#0000e05&| |T|e|r|n|a|r|y| +0#0000000&@65
 @75
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&@57
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|?+0#af5f00255&| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|:+0#af5f00255&| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&@51
 @75
-@57|9|1|,|1| @9|5|3|%| 
+@57|8|9|,|1| @9|4@1|%| 
diff --git a/runtime/syntax/testdir/dumps/vim9_expr_06.dump b/runtime/syntax/testdir/dumps/vim9_expr_06.dump
index 0ec0e87..b4795c1 100644
--- a/runtime/syntax/testdir/dumps/vim9_expr_06.dump
+++ b/runtime/syntax/testdir/dumps/vim9_expr_06.dump
@@ -1,20 +1,20 @@
 | +0&#ffffff0@74
-|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|h|e|L|i|s|t| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|'+0#e000002&|l|i|s|t| |i|s| |e|m|p|t|y|'| +0#0000000&@43
-|e+0#af5f00255&|c|h|o| +0#0000000&|G|e|t|N|a|m|e|(+0#e000e06&|)| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|'+0#e000002&|u|n|k|n|o|w|n|'| +0#0000000&@47
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+|e+0#af5f00255&|c|h|o| +0#0000000&|l+0#00e0e07&|n|u|m| +0#0000000&|=+0#af5f00255&@1| +0#0000000&|1+0#e000002&| +0#0000000&|?+0#af5f00255&| +0#0000000&|"+0#e000002&|t|o|p|"| +0#0000000&|:+0#af5f00255&| +0#0000000&|l+0#00e0e07&|n|u|m| +0#0000000&|=+0#af5f00255&@1| +0#0000000&|1+0#e000002&|0@2| +0#0000000&|?+0#af5f00255&| +0#0000000&|"+0#e000002&|l|a|s|t|"| +0#0000000&|:+0#af5f00255&| +0#0000000&|l+0#00e0e07&|n|u|m| +0#0000000&@21
 @75
-|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|h|e|L|i|s|t| +0#0000000&@62
-@6>\+0#e000e06&| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|'+0#e000002&|l|i|s|t| |i|s| |e|m|p|t|y|'| +0#0000000&@48
-|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|h|e|L|i|s|t| +0#0000000&|?+0#af5f00255&@1| +0#0000000&@59
-@6|\+0#e000e06&| +0#0000000&|'+0#e000002&|l|i|s|t| |i|s| |e|m|p|t|y|'| +0#0000000&@51
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+|e+0#af5f00255&|c|h|o| +0#0000000&|l+0#00e0e07&|n|u|m| +0#0000000&|=+0#af5f00255&@1| +0#0000000&|1+0#e000002&| +0#0000000&|?+0#af5f00255&| +0#0000000&@58
+@8|"+0#e000002&|t|o|p|"| +0#0000000&|:+0#af5f00255&| +0#0000000&@59
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+@16|"+0#e000002&|l|a|s|t|"| +0#0000000&|:+0#af5f00255&| +0#0000000&@50
+@16|l+0#00e0e07&|n|u|m| +0#0000000&@54
 @75
-|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#e000002&|r|u|e| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|t+0#e000002&|r|u|e| +0#0000000&@57
-|e+0#af5f00255&|c|h|o| +0#0000000&|1+0#e000002&| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|1+0#e000002&| +0#0000000&@63
-|e+0#af5f00255&|c|h|o| +0#0000000&|"+0#e000002&|f|o@1|"| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|"+0#e000002&|f|o@1|"| +0#0000000&@55
-|e+0#af5f00255&|c|h|o| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&@59
-|e+0#af5f00255&|c|h|o| +0#0000000&|g+0#00e0e07&|:|f|o@1| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|g+0#00e0e07&|:|f|o@1| +0#0000000&@55
-|e+0#af5f00255&|c|h|o| +0#0000000&|$+0#e000e06&|F|O@1| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|$+0#e000e06&|F|O@1| +0#0000000&@57
-|e+0#af5f00255&|c|h|o| +0#0000000&|T|r|u|e|(+0#e000e06&|)| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|T|r|u|e|(+0#e000e06&|)| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|@+0#e000e06&|a| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|@+0#e000e06&|a| +0#0000000&@61
-|e+0#af5f00255&|c|h|o| +0#0000000&|(+0#e000e06&|t+0#e000002&|r|u|e|)+0#e000e06&| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|(+0#e000e06&|t+0#e000002&|r|u|e|)+0#e000e06&| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|(+0#e000e06&|1+0#e000002&|)+0#e000e06&| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|(+0#e000e06&|1+0#e000002&|)+0#e000e06&| +0#0000000&@59
-@57|1|0|9|,|7| @8|6|4|%| 
+|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#e000002&|r|u|e| +0#0000000&|?+0#af5f00255&| +0#0000000&|t+0#e000002&|r|u|e| +0#0000000&|:+0#af5f00255&| +0#0000000&|f+0#e000002&|a|l|s|e| +0#0000000&@50
+|e+0#af5f00255&|c|h|o| +0#0000000&|1+0#e000002&| +0#0000000&|?+0#af5f00255&| +0#0000000&|1+0#e000002&| +0#0000000&|:+0#af5f00255&| +0#0000000&|0+0#e000002&| +0#0000000&@60
+|e+0#af5f00255&|c|h|o| +0#0000000&|"+0#e000002&|f|o@1|"| +0#0000000&|?+0#af5f00255&| +0#0000000&|"+0#e000002&|f|o@1|"| +0#0000000&|:+0#af5f00255&| +0#0000000&|"+0#e000002&|b|a|r|"| +0#0000000&@48
+|e+0#af5f00255&|c|h|o| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|?+0#af5f00255&| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|:+0#af5f00255&| +0#0000000&|b+0#00e0e07&|a|r| +0#0000000&@54
+@57|1|0|7|,|2|-|9| @6|5|4|%| 
diff --git a/runtime/syntax/testdir/dumps/vim9_expr_07.dump b/runtime/syntax/testdir/dumps/vim9_expr_07.dump
index 607561b..b468e2d 100644
--- a/runtime/syntax/testdir/dumps/vim9_expr_07.dump
+++ b/runtime/syntax/testdir/dumps/vim9_expr_07.dump
@@ -1,20 +1,20 @@
-|e+0#af5f00255#ffffff0|c|h|o| +0#0000000&|(+0#e000e06&|1+0#e000002&|)+0#e000e06&| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|(+0#e000e06&|1+0#e000002&|)+0#e000e06&| +0#0000000&@59
+|e+0#af5f00255#ffffff0|c|h|o| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|?+0#af5f00255&| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|:+0#af5f00255&| +0#0000000&|b+0#00e0e07&|a|r| +0#0000000&@54
+|e+0#af5f00255&|c|h|o| +0#0000000&|g+0#00e0e07&|:|f|o@1| +0#0000000&|?+0#af5f00255&| +0#0000000&|g+0#00e0e07&|:|f|o@1| +0#0000000&|:+0#af5f00255&| +0#0000000&|g+0#00e0e07&|:|b|a|r| +0#0000000&@48
+|e+0#af5f00255&|c|h|o| +0#0000000&|$+0#e000e06&|F|O@1| +0#0000000&|?+0#af5f00255&| +0#0000000&|$+0#e000e06&|F|O@1| +0#0000000&|:+0#af5f00255&| +0#0000000&|$+0#e000e06&|B|A|R| +0#0000000&@51
+|e+0#af5f00255&|c|h|o| +0#0000000&|T|r|u|e|(+0#e000e06&|)| +0#0000000&|?+0#af5f00255&| +0#0000000&|T|r|u|e|(+0#e000e06&|)| +0#0000000&|:+0#af5f00255&| +0#0000000&|F|a|l|s|e|(+0#e000e06&|)| +0#0000000&@44
+|e+0#af5f00255&|c|h|o| +0#0000000&|@+0#e000e06&|a| +0#0000000&|?+0#af5f00255&| +0#0000000&|@+0#e000e06&|a| +0#0000000&|:+0#af5f00255&| +0#0000000&|@+0#e000e06&|b| +0#0000000&@57
+>e+0#af5f00255&|c|h|o| +0#0000000&|(+0#e000e06&|t+0#e000002&|r|u|e|)+0#e000e06&| +0#0000000&|?+0#af5f00255&| +0#0000000&|(+0#e000e06&|t+0#e000002&|r|u|e|)+0#e000e06&| +0#0000000&|:+0#af5f00255&| +0#0000000&|(+0#e000e06&|f+0#e000002&|a|l|s|e|)+0#e000e06&| +0#0000000&@44
+|e+0#af5f00255&|c|h|o| +0#0000000&|(+0#e000e06&|1+0#e000002&|)+0#e000e06&| +0#0000000&|?+0#af5f00255&| +0#0000000&|(+0#e000e06&|1+0#e000002&|)+0#e000e06&| +0#0000000&|:+0#af5f00255&| +0#0000000&|(+0#e000e06&|0+0#e000002&|)+0#e000e06&| +0#0000000&@54
 @75
+|#+0#0000e05&| |F|a|l|s|y| +0#0000000&@67
 @75
-|#+0#0000e05&| |F|u|n|c|t|i|o|n| |c|a|l@1|s| +0#0000000&@58
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&@57
 @75
->F|o@1|(+0#e000e06&|t+0#e000002&|r|u|e|,+0#0000000&| |f+0#e000002&|a|l|s|e|,+0#0000000&| |n+0#e000002&|u|l@1|)+0#e000e06&| +0#0000000&@52
+|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|h|e|L|i|s|t| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|'+0#e000002&|l|i|s|t| |i|s| |e|m|p|t|y|'| +0#0000000&@43
+|e+0#af5f00255&|c|h|o| +0#0000000&|G|e|t|N|a|m|e|(+0#e000e06&|)| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|'+0#e000002&|u|n|k|n|o|w|n|'| +0#0000000&@47
 @75
-@75
-|#+0#0000e05&| |C|o|m@1|a|n|d| |{|e|x|p|r|}| |a|r|g|u|m|e|n|t|s| +0#0000000&@48
-@75
-|i+0#af5f00255&|f| +0#0000000&|t+0#e000002&|r|u|e| +0#0000000&@67
-@2|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#e000002&|r|u|e| +0#0000000&@63
-|e+0#af5f00255&|l|s|e|i|f| +0#0000000&|f+0#e000002&|a|l|s|e| +0#0000000&@62
-@2|e+0#af5f00255&|c|h|o| +0#0000000&|f+0#e000002&|a|l|s|e| +0#0000000&@62
-|e+0#af5f00255&|n|d|i|f| +0#0000000&@69
-@75
-|w+0#af5f00255&|h|i|l|e| +0#0000000&|t+0#e000002&|r|u|e| +0#0000000&@64
-@2|b+0#af5f00255&|r|e|a|k| +0#0000000&@67
-|e+0#af5f00255&|n|d|w|h|i|l|e| +0#0000000&@66
-@57|1|2|7|,|1| @8|7|5|%| 
+|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|h|e|L|i|s|t| +0#0000000&@62
+@6|\+0#e000e06&| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|'+0#e000002&|l|i|s|t| |i|s| |e|m|p|t|y|'| +0#0000000&@48
+|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|h|e|L|i|s|t| +0#0000000&|?+0#af5f00255&@1| +0#0000000&@59
+@6|\+0#e000e06&| +0#0000000&|'+0#e000002&|l|i|s|t| |i|s| |e|m|p|t|y|'| +0#0000000&@51
+@57|1|2|5|,|1| @8|6|3|%| 
diff --git a/runtime/syntax/testdir/dumps/vim9_expr_08.dump b/runtime/syntax/testdir/dumps/vim9_expr_08.dump
index 217a65e..dbd374b 100644
--- a/runtime/syntax/testdir/dumps/vim9_expr_08.dump
+++ b/runtime/syntax/testdir/dumps/vim9_expr_08.dump
@@ -1,20 +1,20 @@
-|e+0#af5f00255#ffffff0|n|d|w|h|i|l|e| +0#0000000&@66
+| +0&#ffffff0@5|\+0#e000e06&| +0#0000000&|'+0#e000002&|l|i|s|t| |i|s| |e|m|p|t|y|'| +0#0000000&@51
 @75
-|d+0#af5f00255&|e|f| +0#0000000&|F|o@1|(+0#e000e06&|)|:+0#0000000&| |b+0#00e0003&|o@1|l| +0#0000000&@59
-@2|r+0#af5f00255&|e|t|u|r|n| +0#0000000&|t+0#e000002&|r|u|e| +0#0000000&@61
-|e+0#af5f00255&|n|d@1|e|f| +0#0000000&@68
-> @74
+|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#e000002&|r|u|e| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|t+0#e000002&|r|u|e| +0#0000000&@57
+|e+0#af5f00255&|c|h|o| +0#0000000&|1+0#e000002&| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|1+0#e000002&| +0#0000000&@63
+|e+0#af5f00255&|c|h|o| +0#0000000&|"+0#e000002&|f|o@1|"| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|"+0#e000002&|f|o@1|"| +0#0000000&@55
+>e+0#af5f00255&|c|h|o| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&@59
+|e+0#af5f00255&|c|h|o| +0#0000000&|g+0#00e0e07&|:|f|o@1| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|g+0#00e0e07&|:|f|o@1| +0#0000000&@55
+|e+0#af5f00255&|c|h|o| +0#0000000&|$+0#e000e06&|F|O@1| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|$+0#e000e06&|F|O@1| +0#0000000&@57
+|e+0#af5f00255&|c|h|o| +0#0000000&|T|r|u|e|(+0#e000e06&|)| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|T|r|u|e|(+0#e000e06&|)| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|@+0#e000e06&|a| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|@+0#e000e06&|a| +0#0000000&@61
+|e+0#af5f00255&|c|h|o| +0#0000000&|(+0#e000e06&|t+0#e000002&|r|u|e|)+0#e000e06&| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|(+0#e000e06&|t+0#e000002&|r|u|e|)+0#e000e06&| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|(+0#e000e06&|1+0#e000002&|)+0#e000e06&| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|(+0#e000e06&|1+0#e000002&|)+0#e000e06&| +0#0000000&@59
 @75
-|#+0#0000e05&| |I|s@1|u|e| |#|1|4@1|2|3| |(|v|i|m|.|v|i|m|:| |O|p|t| |o|u|t| |o|f| |v|i|m|S|e|a|r|c|h|*|)| +0#0000000&@27
 @75
-|:|?+0#e000e06&|t+0#e000002&|r|u|t|h|y| +0#0000000&@66
-|c+0#af5f00255&|o|n|s|t| +0#0000000&|t+0#00e0e07&|r|u|t|h|y|:+0#0000000&| |n+0#00e0003&|u|m|b|e|r| +0#0000000&|=+0#af5f00255&| +0#0000000&|f+0#e000002&|a|l|s|e| +0#0000000&@46
-@4|?+0#af5f00255&| +0#0000000&|(+0#e000e06&|0+0#e000002&| +0#0000000&@66
-@4|)+0#e000e06&| +0#0000000&@69
-@4|:+0#af5f00255&| +0#0000000&|(+0#e000e06&|1+0#e000002&| +0#0000000&@66
-@4|)+0#e000e06&| +0#0000000&@69
-|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|r|u|t|h|y| +0#0000000&@63
+|#+0#0000e05&| |F|u|n|c|t|i|o|n| |c|a|l@1|s| +0#0000000&@58
 @75
-|d+0#af5f00255&|e|f| +0#0000000&|F|o@1|(+0#e000e06&|)| +0#0000000&@65
-| +0#e000002&@1|:+0#0000000&|?+0#e000e06&|t+0#e000002&|r|u|t|h|y| +0#0000000&@64
-@57|1|4|5|,|0|-|1| @6|8|6|%| 
+|F|o@1|(+0#e000e06&|t+0#e000002&|r|u|e|,+0#0000000&| |f+0#e000002&|a|l|s|e|,+0#0000000&| |n+0#e000002&|u|l@1|)+0#e000e06&| +0#0000000&@52
+@75
+@75
+@57|1|4|3|,|1| @8|7|3|%| 
diff --git a/runtime/syntax/testdir/dumps/vim9_expr_09.dump b/runtime/syntax/testdir/dumps/vim9_expr_09.dump
index 09e4378..a09b65f 100644
--- a/runtime/syntax/testdir/dumps/vim9_expr_09.dump
+++ b/runtime/syntax/testdir/dumps/vim9_expr_09.dump
@@ -1,20 +1,20 @@
-| +0#e000002#ffffff0@1|:+0#0000000&|?+0#e000e06&|t+0#e000002&|r|u|t|h|y| +0#0000000&@64
-@2|c+0#af5f00255&|o|n|s|t| +0#0000000&|t+0#00e0e07&|r|u|t|h|y|:+0#0000000&| |n+0#00e0003&|u|m|b|e|r| +0#0000000&|=+0#af5f00255&| +0#0000000&|f+0#e000002&|a|l|s|e| +0#0000000&@44
-@6|?+0#af5f00255&| +0#0000000&|(+0#e000e06&|0+0#e000002&| +0#0000000&@64
-@6|)+0#e000e06&| +0#0000000&@67
-@6|:+0#af5f00255&| +0#0000000&|(+0#e000e06&|1+0#e000002&| +0#0000000&@64
-@6>)+0#e000e06&| +0#0000000&@67
-@2|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|r|u|t|h|y| +0#0000000&@61
+| +0&#ffffff0@74
+|#+0#0000e05&| |C|o|m@1|a|n|d| |{|e|x|p|r|}| |a|r|g|u|m|e|n|t|s| +0#0000000&@48
+@75
+|i+0#af5f00255&|f| +0#0000000&|t+0#e000002&|r|u|e| +0#0000000&@67
+@2|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#e000002&|r|u|e| +0#0000000&@63
+>e+0#af5f00255&|l|s|e|i|f| +0#0000000&|f+0#e000002&|a|l|s|e| +0#0000000&@62
+@2|e+0#af5f00255&|c|h|o| +0#0000000&|f+0#e000002&|a|l|s|e| +0#0000000&@62
+|e+0#af5f00255&|n|d|i|f| +0#0000000&@69
+@75
+|w+0#af5f00255&|h|i|l|e| +0#0000000&|t+0#e000002&|r|u|e| +0#0000000&@64
+@2|b+0#af5f00255&|r|e|a|k| +0#0000000&@67
+|e+0#af5f00255&|n|d|w|h|i|l|e| +0#0000000&@66
+@75
+|d+0#af5f00255&|e|f| +0#0000000&|F|o@1|(+0#e000e06&|)|:+0#0000000&| |b+0#00e0003&|o@1|l| +0#0000000&@59
+@2|r+0#af5f00255&|e|t|u|r|n| +0#0000000&|t+0#e000002&|r|u|e| +0#0000000&@61
 |e+0#af5f00255&|n|d@1|e|f| +0#0000000&@68
 @75
 @75
-|#+0#0000e05&| |I|s@1|u|e| |#|1|6|2@1|7| |(|V|i|m| |s|c|r|i|p|t| |t|e|r|n|a|r|y| |e|x|p|r|e|s@1|i|o|n| |h|i|g|h|l|i|g|h|t|i|n|g|)| +0#0000000&@15
-@75
-|v+0#af5f00255&|a|r| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|=+0#af5f00255&| +0#0000000&|'+0#e000002&|f|o@1|'| +0#0000000&@24|#+0#0000e05&| |c|o|m@1|e|n|t| +0#0000000&@25
-|v+0#af5f00255&|a|r| +0#0000000&|b+0#00e0e07&|a|r| +0#0000000&|=+0#af5f00255&| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|=+0#af5f00255&@1| +0#0000000&|'+0#e000002&|f|o@1|'| +0#0000000&|?+0#af5f00255&| +0#0000000&|'+0#e000002&|b|a|r|'| +0#0000000&|:+0#af5f00255&| +0#0000000&|'+0#e000002&|b|a|z|'| +0#0000000&@36
-|v+0#af5f00255&|a|r| +0#0000000&|b+0#00e0e07&|a|z| +0#0000000&|=+0#af5f00255&| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|=+0#af5f00255&@1| +0#0000000&|'+0#e000002&|f|o@1|'| +0#0000000&@52
-@12|\+0#e000e06&| +0#0000000&|?+0#af5f00255&| +0#0000000&|'+0#e000002&|b|a|z|'| +0#0000000&@53
-@12|\+0#e000e06&| +0#0000000&|:+0#af5f00255&| +0#0000000&|'+0#e000002&|b|a|r|'| +0#0000000&@53
-|v+0#af5f00255&|a|r| +0#0000000&|q+0#00e0e07&|u|x| +0#0000000&|=+0#af5f00255&| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|=+0#af5f00255&@1| +0#0000000&|'+0#e000002&|f|o@1|'| +0#0000000&@52
-@12|?+0#af5f00255&| +0#0000000&|'+0#e000002&|q|u|x|'| +0#0000000&@20|#+0#0000e05&| |c|o|m@1|e|n|t| +0#0000000&@25
-@57|1|6|3|,|7| @8|9|8|%| 
+|#+0#0000e05&| |I|s@1|u|e| |#|1|4@1|2|3| |(|v|i|m|.|v|i|m|:| |O|p|t| |o|u|t| |o|f| |v|i|m|S|e|a|r|c|h|*|)| +0#0000000&@27
+@57|1|6|1|,|1| @8|8|2|%| 
diff --git a/runtime/syntax/testdir/dumps/vim9_expr_10.dump b/runtime/syntax/testdir/dumps/vim9_expr_10.dump
index 9d0232e..a826483 100644
--- a/runtime/syntax/testdir/dumps/vim9_expr_10.dump
+++ b/runtime/syntax/testdir/dumps/vim9_expr_10.dump
@@ -1,20 +1,20 @@
-| +0&#ffffff0@11|?+0#af5f00255&| +0#0000000&|'+0#e000002&|q|u|x|'| +0#0000000&@20|#+0#0000e05&| |c|o|m@1|e|n|t| +0#0000000&@25
-@12|:+0#af5f00255&| +0#0000000&|'+0#e000002&|q|u|x|'| +0#0000000&@20|#+0#0000e05&| |c|o|m@1|e|n|t| +0#0000000&@25
-|e+0#af5f00255&|c|h|o| +0#0000000&|q+0#00e0e07&|u|x| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|'+0#e000002&|q|u@1|x|'| +0#0000000&@56
-> @74
-|~+0#4040ff13&| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-| +0#0000000&@56|1|7|9|,|0|-|1| @6|B|o|t| 
+|#+0#0000e05#ffffff0| |I|s@1|u|e| |#|1|4@1|2|3| |(|v|i|m|.|v|i|m|:| |O|p|t| |o|u|t| |o|f| |v|i|m|S|e|a|r|c|h|*|)| +0#0000000&@27
+@75
+|:|?+0#e000e06&|t+0#e000002&|r|u|t|h|y| +0#0000000&@66
+|c+0#af5f00255&|o|n|s|t| +0#0000000&|t+0#00e0e07&|r|u|t|h|y|:+0#0000000&| |n+0#00e0003&|u|m|b|e|r| +0#0000000&|=+0#af5f00255&| +0#0000000&|f+0#e000002&|a|l|s|e| +0#0000000&@46
+@4|?+0#af5f00255&| +0#0000000&|(+0#e000e06&|0+0#e000002&| +0#0000000&@66
+@4>)+0#e000e06&| +0#0000000&@69
+@4|:+0#af5f00255&| +0#0000000&|(+0#e000e06&|1+0#e000002&| +0#0000000&@66
+@4|)+0#e000e06&| +0#0000000&@69
+|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|r|u|t|h|y| +0#0000000&@63
+@75
+|d+0#af5f00255&|e|f| +0#0000000&|F|o@1|(+0#e000e06&|)| +0#0000000&@65
+| +0#e000002&@1|:+0#0000000&|?+0#e000e06&|t+0#e000002&|r|u|t|h|y| +0#0000000&@64
+@2|c+0#af5f00255&|o|n|s|t| +0#0000000&|t+0#00e0e07&|r|u|t|h|y|:+0#0000000&| |n+0#00e0003&|u|m|b|e|r| +0#0000000&|=+0#af5f00255&| +0#0000000&|f+0#e000002&|a|l|s|e| +0#0000000&@44
+@6|?+0#af5f00255&| +0#0000000&|(+0#e000e06&|0+0#e000002&| +0#0000000&@64
+@6|)+0#e000e06&| +0#0000000&@67
+@6|:+0#af5f00255&| +0#0000000&|(+0#e000e06&|1+0#e000002&| +0#0000000&@64
+@6|)+0#e000e06&| +0#0000000&@67
+@2|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|r|u|t|h|y| +0#0000000&@61
+|e+0#af5f00255&|n|d@1|e|f| +0#0000000&@68
+@57|1|7|9|,|5| @8|9|2|%| 
diff --git a/runtime/syntax/testdir/dumps/vim9_expr_11.dump b/runtime/syntax/testdir/dumps/vim9_expr_11.dump
new file mode 100644
index 0000000..6eeeb59
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/vim9_expr_11.dump
@@ -0,0 +1,20 @@
+|e+0#af5f00255#ffffff0|n|d@1|e|f| +0#0000000&@68
+@75
+@75
+|#+0#0000e05&| |I|s@1|u|e| |#|1|6|2@1|7| |(|V|i|m| |s|c|r|i|p|t| |t|e|r|n|a|r|y| |e|x|p|r|e|s@1|i|o|n| |h|i|g|h|l|i|g|h|t|i|n|g|)| +0#0000000&@15
+@75
+>v+0#af5f00255&|a|r| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|=+0#af5f00255&| +0#0000000&|'+0#e000002&|f|o@1|'| +0#0000000&@24|#+0#0000e05&| |c|o|m@1|e|n|t| +0#0000000&@25
+|v+0#af5f00255&|a|r| +0#0000000&|b+0#00e0e07&|a|r| +0#0000000&|=+0#af5f00255&| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|=+0#af5f00255&@1| +0#0000000&|'+0#e000002&|f|o@1|'| +0#0000000&|?+0#af5f00255&| +0#0000000&|'+0#e000002&|b|a|r|'| +0#0000000&|:+0#af5f00255&| +0#0000000&|'+0#e000002&|b|a|z|'| +0#0000000&@36
+|v+0#af5f00255&|a|r| +0#0000000&|b+0#00e0e07&|a|z| +0#0000000&|=+0#af5f00255&| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|=+0#af5f00255&@1| +0#0000000&|'+0#e000002&|f|o@1|'| +0#0000000&@52
+@12|\+0#e000e06&| +0#0000000&|?+0#af5f00255&| +0#0000000&|'+0#e000002&|b|a|z|'| +0#0000000&@53
+@12|\+0#e000e06&| +0#0000000&|:+0#af5f00255&| +0#0000000&|'+0#e000002&|b|a|r|'| +0#0000000&@53
+|v+0#af5f00255&|a|r| +0#0000000&|q+0#00e0e07&|u|x| +0#0000000&|=+0#af5f00255&| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|=+0#af5f00255&@1| +0#0000000&|'+0#e000002&|f|o@1|'| +0#0000000&@52
+@12|?+0#af5f00255&| +0#0000000&|'+0#e000002&|q|u|x|'| +0#0000000&@20|#+0#0000e05&| |c|o|m@1|e|n|t| +0#0000000&@25
+@12|:+0#af5f00255&| +0#0000000&|'+0#e000002&|q|u|x|'| +0#0000000&@20|#+0#0000e05&| |c|o|m@1|e|n|t| +0#0000000&@25
+|e+0#af5f00255&|c|h|o| +0#0000000&|q+0#00e0e07&|u|x| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|'+0#e000002&|q|u@1|x|'| +0#0000000&@56
+@75
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+|~| @73
+| +0#0000000&@56|1|9|7|,|1| @8|B|o|t| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_01.dump b/runtime/syntax/testdir/dumps/vim_expr_01.dump
index 51f7a9e..af306c4 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_01.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_01.dump
@@ -17,4 +17,4 @@
 @75
 |e+0#af5f00255&|c|h|o| +0#0000000&|"+0#e000002&|\+0#e000e06&|<|C|-|a|>|"+0#e000002&| +0#0000000&@61
 |e+0#af5f00255&|c|h|o| +0#0000000&|"+0#e000002&|\+0#e000e06&|<|*|C|-|a|>|"+0#e000002&| +0#0000000&@60
-@57|1|8|,|1| @10|3|%| 
+@57|1|8|,|1| @10|2|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_03.dump b/runtime/syntax/testdir/dumps/vim_expr_03.dump
index edd39a9..728805f 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_03.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_03.dump
@@ -17,4 +17,4 @@
 |"+0#0000e05&| |C|o|n|t|i|n|u|e|d| |s|t|r|i|n|g| +0#0000000&@56
 @75
 |l+0#af5f00255&|e|t| +0#0000000&|s+0#00e0e07&| +0#0000000&|=+0#af5f00255&| +0#0000000&|"+0#e000002&| +0#0000000&@65
-@57|4|9|,|0|-|1| @7|1@1|%| 
+@57|4|9|,|0|-|1| @7|1|0|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_05.dump b/runtime/syntax/testdir/dumps/vim_expr_05.dump
index 67ca1ae..ab5f303 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_05.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_05.dump
@@ -17,4 +17,4 @@
 | +0#e000002&@5|\+0#e000e06&|"+0#e000002&| +0#0000000&|"+0#0000e05&| |t|a|i|l| |c|o|m@1|e|n|t| +0#0000000&@51
 @75
 |l+0#af5f00255&|e|t| +0#0000000&|s+0#00e0e07&| +0#0000000&|=+0#af5f00255&| +0#0000000&|$+0#e000002&|'| +0#0000000&@64
-@57|8|5|,|7| @9|2|0|%| 
+@57|8|5|,|7| @9|1|9|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_06.dump b/runtime/syntax/testdir/dumps/vim_expr_06.dump
index 3c624a7..057d9d0 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_06.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_06.dump
@@ -17,4 +17,4 @@
 @75
 |"+0#0000e05&| |N|u|m|b|e|r| +0#0000000&@66
 @75
-@57|1|0|3|,|7| @8|2|5|%| 
+@57|1|0|3|,|7| @8|2|4|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_07.dump b/runtime/syntax/testdir/dumps/vim_expr_07.dump
index e33c328..b90a4f7 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_07.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_07.dump
@@ -17,4 +17,4 @@
 |e+0#af5f00255&|c|h|o| +0#0000000&|-+0#af5f00255&|0+0#e000002&|o|3|7@1| +0#0000000&@63
 |e+0#af5f00255&|c|h|o| +0#0000000&|-+0#af5f00255&|0+0#e000002&|O|3|7@1| +0#0000000&@63
 @75
-@57|1|2|1|,|1| @8|2|9|%| 
+@57|1|2|1|,|1| @8|2|8|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_08.dump b/runtime/syntax/testdir/dumps/vim_expr_08.dump
index ca88d9f..ce5375d 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_08.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_08.dump
@@ -17,4 +17,4 @@
 |"+0#0000e05&| |B|l|o|b| +0#0000000&@68
 |e+0#af5f00255&|c|h|o| +0#0000000&|0+0#e000002&|z| +0#0000000&@67
 |e+0#af5f00255&|c|h|o| +0#0000000&|0+0#e000002&|z|F@1|0@1|E|D|0|1|5|D|A|F| +0#0000000&@55
-@57|1|3|9|,|1| @8|3|4|%| 
+@57|1|3|9|,|1| @8|3|2|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_09.dump b/runtime/syntax/testdir/dumps/vim_expr_09.dump
index 5e3dfbb..cd4cbe9 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_09.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_09.dump
@@ -17,4 +17,4 @@
 |"+0#0000e05&| |I|s@1|u|e| |#|5|8|3|0| |(|I|n|c|o|r@1|e|c|t| |s|y|n|t|a|x| |h|i|g|h|l|i|g|h|t|i|n|g| |i|n| |V|i|m| |s|c|r|i|p|t| |w|h|e|n| |o|m|i|t@1|i|n|g| |s|p
 |a|c|e| |i|n| |l|i|s|t| |o|f| |s|t|r|i|n|g|)| +0#0000000&@52
 |l+0#af5f00255&|e|t| +0#0000000&|l+0#00e0e07&| +0#0000000&|=+0#af5f00255&| +0#0000000&|[+0#e000e06&|'+0#e000002&|a|'|,+0#0000000&|'+0#e000002&|b|'|,+0#0000000&|'+0#e000002&|c|'|]+0#e000e06&| +0#0000000&@53
-@57|1|5|7|,|0|-|1| @6|3|9|%| 
+@57|1|5|7|,|0|-|1| @6|3|7|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_10.dump b/runtime/syntax/testdir/dumps/vim_expr_10.dump
index 2584a31..5be3b10 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_10.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_10.dump
@@ -17,4 +17,4 @@
 |e+0#af5f00255&|c|h|o| +0#0000000&|{+0#e000e06&| +0#0000000&|'+0#e000002&|f|o@1|'|:+0#0000000&| @1|{+0#e000e06&| +0#0000000&|'+0#e000002&|b|a|r|'|:+0#0000000&| |2+0#e000002&|1| +0#0000000&|*+0#af5f00255&| +0#0000000&|2+0#e000002&| +0#0000000&|}+0#e000e06&| +0#0000000&|}+0#e000e06&| +0#0000000&@40
 |e+0#af5f00255&|c|h|o| +0#0000000&|{+0#e000e06&| +0#0000000&|'+0#e000002&|f|o@1|'|:+0#0000000&| @1|{+0#e000e06&| +0#0000000&|"+0#e000002&|b|a|r|"|:+0#0000000&| |2+0#e000002&|1| +0#0000000&|*+0#af5f00255&| +0#0000000&|2+0#e000002&| +0#0000000&|}+0#e000e06&| +0#0000000&|}+0#e000e06&| +0#0000000&@40
 |e+0#af5f00255&|c|h|o| +0#0000000&|{+0#e000e06&| +0#0000000&|'+0#e000002&|f|o@1|'|:+0#0000000&| @1|{+0#e000e06&| +0#0000000&@3|4+0#e000002&|2|:+0#0000000&| |2+0#e000002&|1| +0#0000000&|*+0#af5f00255&| +0#0000000&|2+0#e000002&| +0#0000000&|}+0#e000e06&| +0#0000000&|}+0#e000e06&| +0#0000000&@40
-@57|1|7|4|,|1| @8|4|3|%| 
+@57|1|7|4|,|1| @8|4|1|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_11.dump b/runtime/syntax/testdir/dumps/vim_expr_11.dump
index f230059..d8be50a 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_11.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_11.dump
@@ -17,4 +17,4 @@
 @75
 |"+0#0000e05&| +0#0000000&|T+0#0000001#ffff4012|O|D|O|:+0#e000e06#ffffff0| +0#0000e05&|a|r|b|i|t|r|a|r|y| |e|x|p|r|e|s@1|i|o|n| |k|e|y|s| +0#0000000&@41
 @75
-@57|1|9|2|,|1| @8|4|8|%| 
+@57|1|9|2|,|1| @8|4|6|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_12.dump b/runtime/syntax/testdir/dumps/vim_expr_12.dump
index 8a5f504..71462fe 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_12.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_12.dump
@@ -17,4 +17,4 @@
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diff --git a/runtime/syntax/testdir/dumps/vim_expr_13.dump b/runtime/syntax/testdir/dumps/vim_expr_13.dump
index a48bf7c..3f9b56d 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_13.dump
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diff --git a/runtime/syntax/testdir/dumps/vim_expr_14.dump b/runtime/syntax/testdir/dumps/vim_expr_14.dump
index a878727..ccd2840 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_14.dump
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index 1e7023d..b261b70 100644
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index faec65e..36583d5 100644
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+|"+0#0000e05&| |T|e|r|n|a|r|y| +0#0000000&@65
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|?+0#af5f00255&| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|:+0#af5f00255&| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&@51
+@75
+|e+0#af5f00255&|c|h|o| +0#0000000&|l+0#00e0e07&|n|u|m| +0#0000000&|=+0#af5f00255&@1| +0#0000000&|1+0#e000002&| +0#0000000&|?+0#af5f00255&| +0#0000000&|"+0#e000002&|t|o|p|"| +0#0000000&|:+0#af5f00255&| +0#0000000&|l+0#00e0e07&|n|u|m| +0#0000000&@45
+|e+0#af5f00255&|c|h|o| +0#0000000&|l+0#00e0e07&|n|u|m| +0#0000000&|=+0#af5f00255&@1| +0#0000000&|1+0#e000002&| +0#0000000&|?+0#af5f00255&| +0#0000000&|"+0#e000002&|t|o|p|"| +0#0000000&|:+0#af5f00255&| +0#0000000&|l+0#00e0e07&|n|u|m| +0#0000000&|=+0#af5f00255&@1| +0#0000000&|1+0#e000002&|0@2| +0#0000000&|?+0#af5f00255&| +0#0000000&|"+0#e000002&|l|a|s|t|"| +0#0000000&|:+0#af5f00255&| +0#0000000&|l+0#00e0e07&|n|u|m| +0#0000000&@21
+@75
+@57|2|8|0|,|1| @8|6|7|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_17.dump b/runtime/syntax/testdir/dumps/vim_expr_17.dump
index 4ece865..0207029 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_17.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_17.dump
@@ -1,20 +1,20 @@
-|e+0#af5f00255#ffffff0|c|h|o| +0#0000000&|@+0#e000e06&|a| +0#0000000&|?+0#af5f00255&| +0#0000000&|@+0#e000e06&|a| +0#0000000&|:+0#af5f00255&| +0#0000000&|@+0#e000e06&|b| +0#0000000&@57
-|e+0#af5f00255&|c|h|o| +0#0000000&|(+0#e000e06&|1+0#e000002&|)+0#e000e06&| +0#0000000&|?+0#af5f00255&| +0#0000000&|(+0#e000e06&|1+0#e000002&|)+0#e000e06&| +0#0000000&|:+0#af5f00255&| +0#0000000&|(+0#e000e06&|0+0#e000002&|)+0#e000e06&| +0#0000000&@54
+| +0&#ffffff0@74
+|e+0#af5f00255&|c|h|o| +0#0000000&|l+0#00e0e07&|n|u|m| +0#0000000&|=+0#af5f00255&@1| +0#0000000&|1+0#e000002&| +0#0000000&@60
+@6|\+0#e000e06&| +0#0000000&|?+0#af5f00255&| +0#0000000&|"+0#e000002&|t|o|p|"| +0#0000000&@59
+@6|\+0#e000e06&| +0#0000000&|:+0#af5f00255&| +0#0000000&|l+0#00e0e07&|n|u|m| +0#0000000&|=+0#af5f00255&@1| +0#0000000&|1+0#e000002&|0@2| +0#0000000&@52
+@6|\+0#e000e06&| +0#0000000&@8|?+0#af5f00255&| +0#0000000&|"+0#e000002&|l|a|s|t|"| +0#0000000&@50
+@6>\+0#e000e06&| +0#0000000&@8|:+0#af5f00255&| +0#0000000&|l+0#00e0e07&|n|u|m| +0#0000000&@52
+|e+0#af5f00255&|c|h|o| +0#0000000&|l+0#00e0e07&|n|u|m| +0#0000000&|=+0#af5f00255&@1| +0#0000000&|1+0#e000002&| +0#0000000&|?+0#af5f00255&| +0#0000000&@58
+@6|\+0#e000e06&| +0#0000000&|"+0#e000002&|t|o|p|"| +0#0000000&|:+0#af5f00255&| +0#0000000&@59
+@6|\+0#e000e06&| +0#0000000&|l+0#00e0e07&|n|u|m| +0#0000000&|=+0#af5f00255&@1| +0#0000000&|1+0#e000002&|0@2| +0#0000000&|?+0#af5f00255&| +0#0000000&@52
+@6|\+0#e000e06&| +0#0000000&@8|"+0#e000002&|l|a|s|t|"| +0#0000000&|:+0#af5f00255&| +0#0000000&@50
+@6|\+0#e000e06&| +0#0000000&@8|l+0#00e0e07&|n|u|m| +0#0000000&@54
 @75
-|"+0#0000e05&| |F|a|l|s|y| +0#0000000&@67
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&@57
-> @74
-|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|h|e|L|i|s|t| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|'+0#e000002&|l|i|s|t| |i|s| |e|m|p|t|y|'| +0#0000000&@43
-|e+0#af5f00255&|c|h|o| +0#0000000&|G|e|t|N|a|m|e|(+0#e000e06&|)| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|'+0#e000002&|u|n|k|n|o|w|n|'| +0#0000000&@47
-@75
-|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|h|e|L|i|s|t| +0#0000000&@62
-@6|\+0#e000e06&| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|'+0#e000002&|l|i|s|t| |i|s| |e|m|p|t|y|'| +0#0000000&@48
-|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|h|e|L|i|s|t| +0#0000000&|?+0#af5f00255&@1| +0#0000000&@59
-@6|\+0#e000e06&| +0#0000000&|'+0#e000002&|l|i|s|t| |i|s| |e|m|p|t|y|'| +0#0000000&@51
-@75
-|e+0#af5f00255&|c|h|o| +0#0000000&|1+0#e000002&| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|1+0#e000002&| +0#0000000&@63
-|e+0#af5f00255&|c|h|o| +0#0000000&|"+0#e000002&|f|o@1|"| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|"+0#e000002&|f|o@1|"| +0#0000000&@55
-|e+0#af5f00255&|c|h|o| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&@59
-|e+0#af5f00255&|c|h|o| +0#0000000&|g+0#00e0e07&|:|f|o@1| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|g+0#00e0e07&|:|f|o@1| +0#0000000&@55
-|e+0#af5f00255&|c|h|o| +0#0000000&|$+0#e000e06&|F|O@1| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|$+0#e000e06&|F|O@1| +0#0000000&@57
-@57|2|9|8|,|0|-|1| @6|7|5|%| 
+|e+0#af5f00255&|c|h|o| +0#0000000&|1+0#e000002&| +0#0000000&|?+0#af5f00255&| +0#0000000&|1+0#e000002&| +0#0000000&|:+0#af5f00255&| +0#0000000&|0+0#e000002&| +0#0000000&@60
+|e+0#af5f00255&|c|h|o| +0#0000000&|"+0#e000002&|f|o@1|"| +0#0000000&|?+0#af5f00255&| +0#0000000&|"+0#e000002&|f|o@1|"| +0#0000000&|:+0#af5f00255&| +0#0000000&|"+0#e000002&|b|a|r|"| +0#0000000&@48
+|e+0#af5f00255&|c|h|o| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|?+0#af5f00255&| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|:+0#af5f00255&| +0#0000000&|b+0#00e0e07&|a|r| +0#0000000&@54
+|e+0#af5f00255&|c|h|o| +0#0000000&|g+0#00e0e07&|:|f|o@1| +0#0000000&|?+0#af5f00255&| +0#0000000&|g+0#00e0e07&|:|f|o@1| +0#0000000&|:+0#af5f00255&| +0#0000000&|g+0#00e0e07&|:|b|a|r| +0#0000000&@48
+|e+0#af5f00255&|c|h|o| +0#0000000&|$+0#e000e06&|F|O@1| +0#0000000&|?+0#af5f00255&| +0#0000000&|$+0#e000e06&|F|O@1| +0#0000000&|:+0#af5f00255&| +0#0000000&|$+0#e000e06&|B|A|R| +0#0000000&@51
+|e+0#af5f00255&|c|h|o| +0#0000000&|T|r|u|e|(+0#e000e06&|)| +0#0000000&|?+0#af5f00255&| +0#0000000&|T|r|u|e|(+0#e000e06&|)| +0#0000000&|:+0#af5f00255&| +0#0000000&|F|a|l|s|e|(+0#e000e06&|)| +0#0000000&@44
+|e+0#af5f00255&|c|h|o| +0#0000000&|@+0#e000e06&|a| +0#0000000&|?+0#af5f00255&| +0#0000000&|@+0#e000e06&|a| +0#0000000&|:+0#af5f00255&| +0#0000000&|@+0#e000e06&|b| +0#0000000&@57
+@57|2|9|8|,|7| @8|7|2|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_18.dump b/runtime/syntax/testdir/dumps/vim_expr_18.dump
index 4452cd9..e509a7d 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_18.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_18.dump
@@ -1,20 +1,20 @@
-|e+0#af5f00255#ffffff0|c|h|o| +0#0000000&|$+0#e000e06&|F|O@1| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|$+0#e000e06&|F|O@1| +0#0000000&@57
-|e+0#af5f00255&|c|h|o| +0#0000000&|T|r|u|e|(+0#e000e06&|)| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|T|r|u|e|(+0#e000e06&|)| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|@+0#e000e06&|a| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|@+0#e000e06&|a| +0#0000000&@61
-|e+0#af5f00255&|c|h|o| +0#0000000&|(+0#e000e06&|1+0#e000002&|)+0#e000e06&| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|(+0#e000e06&|1+0#e000002&|)+0#e000e06&| +0#0000000&@59
+|e+0#af5f00255#ffffff0|c|h|o| +0#0000000&|@+0#e000e06&|a| +0#0000000&|?+0#af5f00255&| +0#0000000&|@+0#e000e06&|a| +0#0000000&|:+0#af5f00255&| +0#0000000&|@+0#e000e06&|b| +0#0000000&@57
+|e+0#af5f00255&|c|h|o| +0#0000000&|(+0#e000e06&|1+0#e000002&|)+0#e000e06&| +0#0000000&|?+0#af5f00255&| +0#0000000&|(+0#e000e06&|1+0#e000002&|)+0#e000e06&| +0#0000000&|:+0#af5f00255&| +0#0000000&|(+0#e000e06&|0+0#e000002&|)+0#e000e06&| +0#0000000&@54
 @75
->"+0#0000e05&| |C|o|m|p|a|r|i|s|o|n| |-| |u|s|i|n|g| |'|i|g|n|o|r|c|a|s|e|'| +0#0000000&@42
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|=+0#af5f00255&@1| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|!+0#af5f00255&|=| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|>+0#af5f00255&| +0#0000000&@5|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|>+0#af5f00255&|=| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|<+0#af5f00255&| +0#0000000&@5|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|<+0#af5f00255&|=| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|=+0#af5f00255&|~| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|!+0#af5f00255&|~| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|i+0#af5f00255&|s| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|i+0#af5f00255&|s|n|o|t| +0#0000000&@1|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|"+0#0000e05&| |F|a|l|s|y| +0#0000000&@67
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&@57
+> @74
+|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|h|e|L|i|s|t| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|'+0#e000002&|l|i|s|t| |i|s| |e|m|p|t|y|'| +0#0000000&@43
+|e+0#af5f00255&|c|h|o| +0#0000000&|G|e|t|N|a|m|e|(+0#e000e06&|)| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|'+0#e000002&|u|n|k|n|o|w|n|'| +0#0000000&@47
 @75
-|"+0#0000e05&| |C|o|m|p|a|r|i|s|o|n| |-| |m|a|t|c|h| |c|a|s|e| +0#0000000&@49
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|=+0#af5f00255&@1|#| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
-@57|3|1|6|,|1| @8|8|0|%| 
+|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|h|e|L|i|s|t| +0#0000000&@62
+@6|\+0#e000e06&| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|'+0#e000002&|l|i|s|t| |i|s| |e|m|p|t|y|'| +0#0000000&@48
+|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|h|e|L|i|s|t| +0#0000000&|?+0#af5f00255&@1| +0#0000000&@59
+@6|\+0#e000e06&| +0#0000000&|'+0#e000002&|l|i|s|t| |i|s| |e|m|p|t|y|'| +0#0000000&@51
+@75
+|e+0#af5f00255&|c|h|o| +0#0000000&|1+0#e000002&| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|1+0#e000002&| +0#0000000&@63
+|e+0#af5f00255&|c|h|o| +0#0000000&|"+0#e000002&|f|o@1|"| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|"+0#e000002&|f|o@1|"| +0#0000000&@55
+|e+0#af5f00255&|c|h|o| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|f+0#00e0e07&|o@1| +0#0000000&@59
+|e+0#af5f00255&|c|h|o| +0#0000000&|g+0#00e0e07&|:|f|o@1| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|g+0#00e0e07&|:|f|o@1| +0#0000000&@55
+|e+0#af5f00255&|c|h|o| +0#0000000&|$+0#e000e06&|F|O@1| +0#0000000&|?+0#af5f00255&@1| +0#0000000&|$+0#e000e06&|F|O@1| +0#0000000&@57
+@57|3|1|6|,|0|-|1| @6|7|6|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_19.dump b/runtime/syntax/testdir/dumps/vim_expr_19.dump
index 395bd71..72fb8be 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_19.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_19.dump
@@ -1,20 +1,20 @@
-|e+0#af5f00255#ffffff0|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|=+0#af5f00255&@1|#| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|!+0#af5f00255&|=|#| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|>+0#af5f00255&|#| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|>+0#af5f00255&|=|#| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|<+0#af5f00255&|#| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
->e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|<+0#af5f00255&|=|#| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|=+0#af5f00255&|~|#| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|!+0#af5f00255&|~|#| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|i+0#af5f00255&|s|#| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
-|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|i+0#af5f00255&|s|n|o|t|#| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&@53
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diff --git a/runtime/syntax/testdir/dumps/vim_expr_20.dump b/runtime/syntax/testdir/dumps/vim_expr_20.dump
index bf8b1e4..6501baa 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_20.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_20.dump
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diff --git a/runtime/syntax/testdir/dumps/vim_expr_21.dump b/runtime/syntax/testdir/dumps/vim_expr_21.dump
index a3c01f0..6628f1d 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_21.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_21.dump
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diff --git a/runtime/syntax/testdir/dumps/vim_expr_22.dump b/runtime/syntax/testdir/dumps/vim_expr_22.dump
index dad1738..fbb3e29 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_22.dump
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+@6|"+0#0000e05&|\| +0#0000000&|"+0#0000e05&|c|o|m@1|e|n|t| +0#0000000&|s+0#0000e05&|t|r|i|n|g|"| +0#0000000&@49
+@6|\+0#e000e06&| +0#0000000&|b+0#00e0e07&|a|r| +0#0000000&@63
+@75
+|"+0#0000e05&| |F|u|n|c|t|i|o|n| |c|a|l@1|s| +0#0000000&@58
+@75
+|c+0#af5f00255&|a|l@1| +0#0000000&|F|o@1|(+0#e000e06&|v+0#00e0e07&|:|t|r|u|e|,+0#0000000&| |v+0#00e0e07&|:|f|a|l|s|e|,+0#0000000&| |v+0#00e0e07&|:|n|u|l@1|)+0#e000e06&| +0#0000000&@41
 @75
 @75
-|"+0#0000e05&| |I|s@1|u|e| |#|1|4@1|2|3| |(|v|i|m|.|v|i|m|:| |O|p|t| |o|u|t| |o|f| |v|i|m|S|e|a|r|c|h|*|)| +0#0000000&@27
-> @74
-|?+0#e000e06&|t+0#e000002&|r|u|t|h|y| +0#0000000&@67
-|l+0#af5f00255&|e|t| +0#0000000&|t+0#00e0e07&|r|u|t|h|y| +0#0000000&|=+0#af5f00255&| +0#0000000&|0+0#e000002&| +0#0000000&@60
-|\+0#e000e06&| +0#0000000&@2|?+0#af5f00255&| +0#0000000&|(+0#e000e06&|0+0#e000002&| +0#0000000&@66
-|\+0#e000e06&| +0#0000000&@2|)+0#e000e06&| +0#0000000&@69
-|\+0#e000e06&| +0#0000000&@2|:+0#af5f00255&| +0#0000000&|(+0#e000e06&|1+0#e000002&| +0#0000000&@66
-|\+0#e000e06&| +0#0000000&@2|)+0#e000e06&| +0#0000000&@69
-|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|r|u|t|h|y| +0#0000000&@63
+|"+0#0000e05&| |I|s@1|u|e| |#|1|6|2@1|1| |(|v|i|m|S|t|r|i|n|g| |b|e|c|o|m|e|s| |v|i|m|V|a|r| |w|h|e|n| |p|r|e|c|e|d|e|d| |b|y| |!|)| +0#0000000&@14
 @75
-|f+0#af5f00255&|u|n|c|t|i|o|n| +0#0000000&|F|o@1|(+0#e000e06&|)| +0#0000000&@60
-| +0#e000002&@1|?+0#e000e06&|t+0#e000002&|r|u|t|h|y| +0#0000000&@65
-@2|l+0#af5f00255&|e|t| +0#0000000&|t+0#00e0e07&|r|u|t|h|y| +0#0000000&|=+0#af5f00255&| +0#0000000&|0+0#e000002&| +0#0000000&@58
-@2|\+0#e000e06&| +0#0000000&@2|?+0#af5f00255&| +0#0000000&|(+0#e000e06&|0+0#e000002&| +0#0000000&@64
-@2|\+0#e000e06&| +0#0000000&@2|)+0#e000e06&| +0#0000000&@67
-@57|3|8|7|,|0|-|1| @6|9|8|%| 
+@57|3|8|7|,|7| @8|9|4|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_23.dump b/runtime/syntax/testdir/dumps/vim_expr_23.dump
index b68fc3b..d6713df 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_23.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_23.dump
@@ -1,20 +1,20 @@
-| +0&#ffffff0@1|\+0#e000e06&| +0#0000000&@2|)+0#e000e06&| +0#0000000&@67
-@2|\+0#e000e06&| +0#0000000&@2|:+0#af5f00255&| +0#0000000&|(+0#e000e06&|1+0#e000002&| +0#0000000&@64
-@2|\+0#e000e06&| +0#0000000&@2|)+0#e000e06&| +0#0000000&@67
-@2|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|r|u|t|h|y| +0#0000000&@61
-|e+0#af5f00255&|n|d|f|u|n|c|t|i|o|n| +0#0000000&@63
+| +0&#ffffff0@74
+|l+0#af5f00255&|e|t| +0#0000000&|b+0#00e0e07&|a|r| +0#0000000&|=+0#af5f00255&| +0#0000000&|!+0#af5f00255&|'+0#e000002&|g|:|b|a|r|'|-+0#af5f00255&|>|e+0#00e0e07&|x|i|s|t|s|(+0#e000e06&|)| +0#0000000&@46
+@75
+@75
+|"+0#0000e05&| |I|s@1|u|e| |#|1|4@1|2|3| |(|v|i|m|.|v|i|m|:| |O|p|t| |o|u|t| |o|f| |v|i|m|S|e|a|r|c|h|*|)| +0#0000000&@27
 > @74
-|~+0#4040ff13&| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-| +0#0000000&@56|4|0|5|,|0|-|1| @6|B|o|t| 
+|?+0#e000e06&|t+0#e000002&|r|u|t|h|y| +0#0000000&@67
+|l+0#af5f00255&|e|t| +0#0000000&|t+0#00e0e07&|r|u|t|h|y| +0#0000000&|=+0#af5f00255&| +0#0000000&|0+0#e000002&| +0#0000000&@60
+|\+0#e000e06&| +0#0000000&@2|?+0#af5f00255&| +0#0000000&|(+0#e000e06&|0+0#e000002&| +0#0000000&@66
+|\+0#e000e06&| +0#0000000&@2|)+0#e000e06&| +0#0000000&@69
+|\+0#e000e06&| +0#0000000&@2|:+0#af5f00255&| +0#0000000&|(+0#e000e06&|1+0#e000002&| +0#0000000&@66
+|\+0#e000e06&| +0#0000000&@2|)+0#e000e06&| +0#0000000&@69
+|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|r|u|t|h|y| +0#0000000&@63
+@75
+|f+0#af5f00255&|u|n|c|t|i|o|n| +0#0000000&|F|o@1|(+0#e000e06&|)| +0#0000000&@60
+| +0#e000002&@1|?+0#e000e06&|t+0#e000002&|r|u|t|h|y| +0#0000000&@65
+@2|l+0#af5f00255&|e|t| +0#0000000&|t+0#00e0e07&|r|u|t|h|y| +0#0000000&|=+0#af5f00255&| +0#0000000&|0+0#e000002&| +0#0000000&@58
+@2|\+0#e000e06&| +0#0000000&@2|?+0#af5f00255&| +0#0000000&|(+0#e000e06&|0+0#e000002&| +0#0000000&@64
+@2|\+0#e000e06&| +0#0000000&@2|)+0#e000e06&| +0#0000000&@67
+@57|4|0|5|,|0|-|1| @6|9|8|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_24.dump b/runtime/syntax/testdir/dumps/vim_expr_24.dump
new file mode 100644
index 0000000..94a94af
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/vim_expr_24.dump
@@ -0,0 +1,20 @@
+| +0&#ffffff0@1|\+0#e000e06&| +0#0000000&@2|)+0#e000e06&| +0#0000000&@67
+@2|\+0#e000e06&| +0#0000000&@2|:+0#af5f00255&| +0#0000000&|(+0#e000e06&|1+0#e000002&| +0#0000000&@64
+@2|\+0#e000e06&| +0#0000000&@2|)+0#e000e06&| +0#0000000&@67
+@2|e+0#af5f00255&|c|h|o| +0#0000000&|t+0#00e0e07&|r|u|t|h|y| +0#0000000&@61
+|e+0#af5f00255&|n|d|f|u|n|c|t|i|o|n| +0#0000000&@63
+> @74
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+| +0#0000000&@56|4|2|3|,|0|-|1| @6|B|o|t| 
diff --git a/runtime/syntax/testdir/input/vim9_expr.vim b/runtime/syntax/testdir/input/vim9_expr.vim
index e291309..f42392c 100644
--- a/runtime/syntax/testdir/input/vim9_expr.vim
+++ b/runtime/syntax/testdir/input/vim9_expr.vim
@@ -67,6 +67,33 @@
 # match as keys not scope dictionaries
 echo { b: 42, w: 42, t: 42, g: 42, l: 42, s: 42, a: 42, v: 42  }
 
+" Register
+
+echo @" @@
+echo @0 @1 @2 @3 @4 @5 @6 @7 @8 @9
+echo @a @b @c @d @e @f @g @h @i @j @k @l @m @n @o @p @q @r @s @t @u @v @w @x @y @z
+echo @A @B @C @D @E @F @G @H @I @J @K @L @M @N @O @P @Q @R @S @T @U @V @W @X @Y @Z
+echo @- @: @. @% @# @= @* @+ @~ @_ @/
+
+# read-only @:, @., @%, @~
+@" = "foo" 
+@0 = "foo"
+@1 = "foo"
+@9 = "foo"
+@a = "foo"
+@k = "foo"
+@z = "foo"
+@A = "foo"
+@K = "foo"
+@Z = "foo"
+@- = "foo"
+@# = "foo"
+@= = "foo"
+@* = "foo"
+@+ = "foo"
+@_ = "foo"
+@/ = "foo"
+
 # Operators
 
 # Ternary
diff --git a/runtime/syntax/testdir/input/vim_expr.vim b/runtime/syntax/testdir/input/vim_expr.vim
index e58450e..e2c0dcb 100644
--- a/runtime/syntax/testdir/input/vim_expr.vim
+++ b/runtime/syntax/testdir/input/vim_expr.vim
@@ -258,12 +258,30 @@
 
 " Register
 
-echo @" 
+echo @" @@
 echo @0 @1 @2 @3 @4 @5 @6 @7 @8 @9
-echo @-
 echo @a @b @c @d @e @f @g @h @i @j @k @l @m @n @o @p @q @r @s @t @u @v @w @x @y @z
 echo @A @B @C @D @E @F @G @H @I @J @K @L @M @N @O @P @Q @R @S @T @U @V @W @X @Y @Z
-echo @: @. @% @# @= @* @+ @~ @_ @/
+echo @- @: @. @% @# @= @* @+ @~ @_ @/
+
+" read-only @:, @., @%, @~
+let @" = "foo" 
+let @0 = "foo"
+let @1 = "foo"
+let @9 = "foo"
+let @a = "foo"
+let @k = "foo"
+let @z = "foo"
+let @A = "foo"
+let @K = "foo"
+let @Z = "foo"
+let @- = "foo"
+let @# = "foo"
+let @= = "foo"
+let @* = "foo"
+let @+ = "foo"
+let @_ = "foo"
+let @/ = "foo"
 
 " Operators