patch 8.2.5029: "textlock" is always zero

Problem:    "textlock" is always zero.
Solution:   Remove "textlock" and rename "textwinlock" to "textlock".
            (closes #10489)
diff --git a/src/testdir/test_quickfix.vim b/src/testdir/test_quickfix.vim
index 6970bdc..182d570 100644
--- a/src/testdir/test_quickfix.vim
+++ b/src/testdir/test_quickfix.vim
@@ -3474,7 +3474,7 @@
 func Test_vimgrep_with_textlock()
   new
 
-  " Simple way to execute something with "textwinlock" set.
+  " Simple way to execute something with "textlock" set.
   " Check that vimgrep without jumping can be executed.
   au InsertCharPre * vimgrep /RunTheTest/j runtest.vim
   normal ax