patch 8.2.3841: Vim9: outdated TODO items, disabled tests that workv8.2.3841

Problem:    Vim9: outdated TODO items, disabled tests that work.
Solution:   Remove TODO items, run tests that work now.  Check that a dict
            item isn't locked.

2 files changed, 29 insertions, 8 deletions

diff --git a/src/testdir/test_listdict.vim b/src/testdir/test_listdict.vim
index 10cb78662..957520bcc 100644
--- a/src/testdir/test_listdict.vim
+++ b/src/testdir/test_listdict.vim
@@ -743,10 +743,7 @@ func Test_dict_item_lock_unlet()
       unlet d.a
       call assert_equal({'b': 100}, d)
   END
-  " TODO: make this work in a :def function
-  "call CheckLegacyAndVim9Success(lines)
-  call CheckTransLegacySuccess(lines)
-  call CheckTransVim9Success(lines)
+  call CheckLegacyAndVim9Success(lines)
 endfunc
 
 " filter() after lock on dict item
@@ -757,10 +754,7 @@ func Test_dict_lock_filter()
       call filter(d, 'v:key != "a"')
       call assert_equal({'b': 100}, d)
   END
-  " TODO: make this work in a :def function
-  "call CheckLegacyAndVim9Success(lines)
-  call CheckTransLegacySuccess(lines)
-  call CheckTransVim9Success(lines)
+  call CheckLegacyAndVim9Success(lines)
 endfunc
 
 " map() after lock on dict
@@ -774,6 +768,17 @@ func Test_dict_lock_map()
   " This won't work in a :def function
   call CheckTransLegacySuccess(lines)
   call CheckTransVim9Success(lines)
+
+  " For a :def function use a global dict.
+  let lines =<< trim END
+      let g:thedict = {'a': 77, 'b': 88}
+      lockvar 1 g:thedict
+      def Delkey()
+        unlet g:thedict.a
+      enddef
+      call Delkey()
+  END
+  call CheckScriptFailure(lines, 'E741:')
 endfunc
 
 " No extend() after lock on dict item
diff --git a/src/testdir/test_vim9_assign.vim b/src/testdir/test_vim9_assign.vim
index d191ac0bd..e1fe09578 100644
--- a/src/testdir/test_vim9_assign.vim
+++ b/src/testdir/test_vim9_assign.vim
@@ -2017,6 +2017,22 @@ def Test_unlet()
    'defcompile',
    ], 'E1081:')
 
+  CheckScriptFailure([
+   'vim9script',
+   'def Delcount(dict: dict<any>)',
+   '  unlet dict.count',
+   'enddef',
+   'Delcount(v:)',
+   ], 'E742:')
+
+  CheckScriptFailure([
+   'vim9script',
+   'def DelChangedtick(dict: dict<any>)',
+   '  unlet dict.changedtick',
+   'enddef',
+   'DelChangedtick(b:)',
+   ], 'E795:')
+
   writefile(['vim9script', 'export var svar = 1234'], 'XunletExport.vim')
   var lines =<< trim END
     vim9script