patch 8.0.0655: not easy to make sure a function does not exist
Problem: Not easy to make sure a function does not exist.
Solution: Add ! as an optional argument to :delfunc.
diff --git a/src/testdir/test_vimscript.vim b/src/testdir/test_vimscript.vim
index 6f5a73f..c09e234 100644
--- a/src/testdir/test_vimscript.vim
+++ b/src/testdir/test_vimscript.vim
@@ -1390,6 +1390,16 @@
set verbose=0
endfunc
+func Test_delfunction_force()
+ delfunc! Xtest
+ delfunc! Xtest
+ func Xtest()
+ echo 'nothing'
+ endfunc
+ delfunc! Xtest
+ delfunc! Xtest
+endfunc
+
"-------------------------------------------------------------------------------
" Modelines {{{1
" vim: ts=8 sw=4 tw=80 fdm=marker