patch 8.2.4371: Vim9: can create a script variable from a legacy functionv8.2.4371

Problem:    Vim9: can create a script variable from a legacy function.
Solution:   Disallow creating a script variable from a function.

1 files changed, 9 insertions, 1 deletions

diff --git a/src/testdir/test_vim9_script.vim b/src/testdir/test_vim9_script.vim
index eec19d94fb..9993c5edb3 100644
--- a/src/testdir/test_vim9_script.vim
+++ b/src/testdir/test_vim9_script.vim
@@ -3071,13 +3071,21 @@ def Test_forward_declaration()
   delete('Xforward')
 enddef
 
-def Test_declare_script_in_func()
+def Test_declare_script_var_in_func()
   var lines =<< trim END
       vim9script
       func Declare()
         let s:local = 123
       endfunc
       Declare()
+  END
+  v9.CheckScriptFailure(lines, 'E1269:')
+enddef
+        
+def Test_lock_script_var()
+  var lines =<< trim END
+      vim9script
+      var local = 123
       assert_equal(123, local)
 
       var error: string