patch 9.0.0321: cannot use the message popup window directly
Problem: Cannot use the message popup window directly.
Solution: Add ":echowindow".
diff --git a/src/testdir/dumps/Test_echowindow_1.dump b/src/testdir/dumps/Test_echowindow_1.dump
new file mode 100644
index 0000000..8c3db07
--- /dev/null
+++ b/src/testdir/dumps/Test_echowindow_1.dump
@@ -0,0 +1,8 @@
+>s+0&#ffffff0|o|m|e| |t|e|x|t| @65
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+|~| @73
+|═+0#e000002&@74
+|f|i|r|s|t| |l|i|n|e| @64
+| +0#0000000&@56|1|,|1| @10|A|l@1|
diff --git a/src/testdir/dumps/Test_echowindow_2.dump b/src/testdir/dumps/Test_echowindow_2.dump
new file mode 100644
index 0000000..f8bea0c
--- /dev/null
+++ b/src/testdir/dumps/Test_echowindow_2.dump
@@ -0,0 +1,8 @@
+>s+0&#ffffff0|o|m|e| |t|e|x|t| @65
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+|═+0#e000002&@74
+|f|i|r|s|t| |l|i|n|e| @64
+|s|e|c|o|n|d| |l|i|n|e| @63
+| +0#0000000&@56|1|,|1| @10|A|l@1|
diff --git a/src/testdir/dumps/Test_echowindow_3.dump b/src/testdir/dumps/Test_echowindow_3.dump
new file mode 100644
index 0000000..5d84236
--- /dev/null
+++ b/src/testdir/dumps/Test_echowindow_3.dump
@@ -0,0 +1,8 @@
+>s+0&#ffffff0|o|m|e| |t|e|x|t| @65
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+| +0#0000000&@56|1|,|1| @10|A|l@1|