patch 8.2.3826: Vim9: using "g:Func" as funcref doesn't work in :def function

Problem:    Vim9: using "g:Func" as a funcref does not work in a :def
            function.
Solution:   Include "g:" in the function name. (closes #9336)
diff --git a/src/testdir/test_vim9_disassemble.vim b/src/testdir/test_vim9_disassemble.vim
index 4cf37b7..76fd3fa 100644
--- a/src/testdir/test_vim9_disassemble.vim
+++ b/src/testdir/test_vim9_disassemble.vim
@@ -2413,7 +2413,7 @@
   assert_match('<SNR>\d*_UseMember\_s*' ..
           'var d = {func: Legacy}\_s*' ..
           '\d PUSHS "func"\_s*' ..
-          '\d PUSHFUNC "Legacy"\_s*' ..
+          '\d PUSHFUNC "g:Legacy"\_s*' ..
           '\d NEWDICT size 1\_s*' ..
           '\d STORE $0\_s*' ..