patch 8.1.1921: more functions can be used as methods
Problem: More functions can be used as methods.
Solution: Make various functions usable as a method.
diff --git a/src/testdir/test_fnameescape.vim b/src/testdir/test_fnameescape.vim
index 5382b89..b0fdb3a 100644
--- a/src/testdir/test_fnameescape.vim
+++ b/src/testdir/test_fnameescape.vim
@@ -13,7 +13,7 @@
let fname = 'Xemark!'
let status = v:false
try
- exe "w! " . fnameescape(fname)
+ exe "w! " . fname->fnameescape()
let status = v:true
endtry
call assert_true(status, "ExclamationMark")