patch 8.2.1427: Vim9: cannot use a range with marks in :def function

Problem:    Vim9: cannot use a range with marks in :def function.
Solution:   Parse range after colon. (closes #6686)
diff --git a/src/testdir/test_vim9_disassemble.vim b/src/testdir/test_vim9_disassemble.vim
index 5d9447d..3c7724d 100644
--- a/src/testdir/test_vim9_disassemble.vim
+++ b/src/testdir/test_vim9_disassemble.vim
@@ -83,20 +83,37 @@
 
 def Test_disassemble_exec_expr()
   let res = execute('disass s:EditExpand')
-  assert_match('<SNR>\d*_EditExpand.*' ..
-        ' let filename = "file".*' ..
-        '\d PUSHS "file".*' ..
-        '\d STORE $0.*' ..
-        ' let filenr = 123.*' ..
-        '\d STORE 123 in $1.*' ..
-        ' edit the`=filename``=filenr`.txt.*' ..
-        '\d PUSHS "edit the".*' ..
-        '\d LOAD $0.*' ..
-        '\d LOAD $1.*' ..
-        '\d 2STRING stack\[-1\].*' ..
-        '\d PUSHS ".txt".*' ..
-        '\d EXECCONCAT 4.*' ..
-        '\d PUSHNR 0.*' ..
+  assert_match('<SNR>\d*_EditExpand\_s*' ..
+        ' let filename = "file"\_s*' ..
+        '\d PUSHS "file"\_s*' ..
+        '\d STORE $0\_s*' ..
+        ' let filenr = 123\_s*' ..
+        '\d STORE 123 in $1\_s*' ..
+        ' edit the`=filename``=filenr`.txt\_s*' ..
+        '\d PUSHS "edit the"\_s*' ..
+        '\d LOAD $0\_s*' ..
+        '\d LOAD $1\_s*' ..
+        '\d 2STRING stack\[-1\]\_s*' ..
+        '\d\+ PUSHS ".txt"\_s*' ..
+        '\d\+ EXECCONCAT 4\_s*' ..
+        '\d\+ PUSHNR 0\_s*' ..
+        '\d\+ RETURN',
+        res)
+enddef
+
+def s:YankRange()
+  norm! m[jjm]
+  :'[,']yank
+enddef
+
+def Test_disassemble_yank_range()
+  let res = execute('disass s:YankRange')
+  assert_match('<SNR>\d*_YankRange.*' ..
+        ' norm! m\[jjm\]\_s*' ..
+        '\d EXEC   norm! m\[jjm\]\_s*' ..
+        '  :''\[,''\]yank\_s*' ..
+        '\d EXEC   :''\[,''\]yank\_s*' ..
+        '\d PUSHNR 0\_s*' ..
         '\d RETURN',
         res)
 enddef
diff --git a/src/version.c b/src/version.c
index 6edd5ec..63c9c3d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1427,
+/**/
     1426,
 /**/
     1425,
diff --git a/src/vim9compile.c b/src/vim9compile.c
index 88108f4..dfcff50 100644
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -6567,7 +6567,7 @@
 	 * 'text'->func() should not be confused with 'a mark
 	 */
 	cmd = ea.cmd;
-	if (*cmd != '\'')
+	if (*cmd != '\'' || starts_with_colon)
 	{
 	    ea.cmd = skip_range(ea.cmd, NULL);
 	    if (ea.cmd > cmd && !starts_with_colon)