patch 9.0.0059: test file has wrong name

Problem:    Test file has wrong name.
Solution:   Rename the file.  Various small fixes. (closes #10674)
diff --git a/src/testdir/test_timers.vim b/src/testdir/test_timers.vim
index 7a5cc29..338be10 100644
--- a/src/testdir/test_timers.vim
+++ b/src/testdir/test_timers.vim
@@ -369,7 +369,7 @@
 
 " Test that the garbage collector isn't triggered if a timer callback invokes
 " vgetc().
-func Test_timer_nocatch_garbage_collect()
+func Test_nocatch_timer_garbage_collect()
   " 'uptimetime. must be bigger than the timer timeout
   set ut=200
   call test_garbagecollect_soon()