patch 8.1.1993: 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_diffmode.vim b/src/testdir/test_diffmode.vim
index bbdbfb8..8280a2c 100644
--- a/src/testdir/test_diffmode.vim
+++ b/src/testdir/test_diffmode.vim
@@ -330,7 +330,7 @@
call setline(1, ['One', '', 'Two', 'Three'])
diffthis
redraw
- call assert_notequal(normattr, screenattr(1, 1))
+ call assert_notequal(normattr, 1->screenattr(1))
diffoff!
redraw
call assert_equal(normattr, screenattr(1, 1))