patch 8.2.2567: Vim9: no error if variable is defined for existing function Commit: https://github.com/vim/vim/commit/6c3843ca8ab105bfb85f6ea8bcec2cbc03f46e7f Author: Bram Moolenaar <Bram@vim.org> Date: Thu Mar 4 12:38:21 2021 +0100 patch 8.2.2567: Vim9: no error if variable is defined for existing function Problem: Vim9: no error if variable is defined for existing function. Solution: Check if name isn't already in use. (closes https://github.com/vim/vim/issues/7897)

--- a/src/testdir/test_vim9_script.vim
+++ b/src/testdir/test_vim9_script.vim
@@ -1515,6 +1515,17 @@ def Test_script_reload_change_type()
   delete('Xreload.vim')
 enddef
 
+def Test_script_var_shadows_function()
+  var lines =<< trim END
+      vim9script
+      def Func(): number
+        return 123
+      enddef
+      var Func = 1
+  END
+  CheckScriptFailure(lines, 'E1041:', 5)
+enddef
+
 def s:RetSome(): string
   return 'some'
 enddef