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_popupwin.vim b/src/testdir/test_popupwin.vim
index 03cada3..e6b4137 100644
--- a/src/testdir/test_popupwin.vim
+++ b/src/testdir/test_popupwin.vim
@@ -833,7 +833,7 @@
sleep 700m
redraw
- let line = join(map(range(1, 5), 'screenstring(1, v:val)'), '')
+ let line = join(map(range(1, 5), '1->screenstring(v:val)'), '')
call assert_equal('hello', line)
call popup_create('on the command line', #{