patch 8.1.1513: all popup functionality is in functions, except :popupclear
Problem: All popup functionality is in functions, except :popupclear.
Solution: Add popup_clear() for consistency. Also rename sound_stopall() to
sound_clear().
diff --git a/src/testdir/test_sound.vim b/src/testdir/test_sound.vim
index e47c677..1e2c455 100644
--- a/src/testdir/test_sound.vim
+++ b/src/testdir/test_sound.vim
@@ -41,7 +41,7 @@
let id2 = sound_playfile(fname, 'PlayCallback')
call assert_true(id2 > 0)
sleep 20m
- call sound_stopall()
+ call sound_clear()
call assert_equal(id2, g:id)
call assert_equal(1, g:result)
endfunc