patch 8.2.4989: cannot specify a function name for :defcompile

Problem:    Cannot specify a function name for :defcompile.
Solution:   Implement a function name argument for :defcompile.
diff --git a/src/testdir/test_vim9_disassemble.vim b/src/testdir/test_vim9_disassemble.vim
index c99c8b4..7860495 100644
--- a/src/testdir/test_vim9_disassemble.vim
+++ b/src/testdir/test_vim9_disassemble.vim
@@ -43,6 +43,9 @@
   assert_fails('disass [', 'E475:')
   assert_fails('disass 234', 'E129:')
   assert_fails('disass <XX>foo', 'E129:')
+  assert_fails('disass Test_disassemble_load burp', 'E488:')
+  assert_fails('disass debug debug Test_disassemble_load', 'E488:')
+  assert_fails('disass profile profile Test_disassemble_load', 'E488:')
 
   var res = execute('disass s:ScriptFuncLoad')
   assert_match('<SNR>\d*_ScriptFuncLoad.*' ..