patch 7.4.1844
Problem: Using old function name in comment. More functions should start
with test_.
Solution: Rename function in comment. (Higashi Higashi) Rename
disable_char_avail_for_testing() to test_disable_char_avail().
And alloc_fail() to test_alloc_fail().
diff --git a/src/testdir/runtest.vim b/src/testdir/runtest.vim
index 2b38981..57edcc1 100644
--- a/src/testdir/runtest.vim
+++ b/src/testdir/runtest.vim
@@ -60,7 +60,7 @@
let s:srcdir = expand('%:p:h:h')
-" Prepare for calling garbagecollect_for_testing().
+" Prepare for calling test_garbagecollect_now().
let v:testing = 1
" Support function: get the alloc ID by name.