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/test_quickfix.vim b/src/testdir/test_quickfix.vim
index e002303..242247d 100644
--- a/src/testdir/test_quickfix.vim
+++ b/src/testdir/test_quickfix.vim
@@ -280,19 +280,19 @@
 endfunction
 
 function Test_nomem()
-  call alloc_fail(GetAllocId('qf_dirname_start'), 0, 0)
+  call test_alloc_fail(GetAllocId('qf_dirname_start'), 0, 0)
   call assert_fails('vimgrep vim runtest.vim', 'E342:')
 
-  call alloc_fail(GetAllocId('qf_dirname_now'), 0, 0)
+  call test_alloc_fail(GetAllocId('qf_dirname_now'), 0, 0)
   call assert_fails('vimgrep vim runtest.vim', 'E342:')
 
-  call alloc_fail(GetAllocId('qf_namebuf'), 0, 0)
+  call test_alloc_fail(GetAllocId('qf_namebuf'), 0, 0)
   call assert_fails('cfile runtest.vim', 'E342:')
 
-  call alloc_fail(GetAllocId('qf_errmsg'), 0, 0)
+  call test_alloc_fail(GetAllocId('qf_errmsg'), 0, 0)
   call assert_fails('cfile runtest.vim', 'E342:')
 
-  call alloc_fail(GetAllocId('qf_pattern'), 0, 0)
+  call test_alloc_fail(GetAllocId('qf_pattern'), 0, 0)
   call assert_fails('cfile runtest.vim', 'E342:')
 
 endfunc