test: use rundir and errorcheckdir for a few more tests.

Update #4139.

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/6620070
diff --git a/test/fixedbugs/bug133.go b/test/fixedbugs/bug133.go
index a6baac2..54a17423 100644
--- a/test/fixedbugs/bug133.go
+++ b/test/fixedbugs/bug133.go
@@ -1,10 +1,7 @@
-// $G $D/$F.dir/bug0.go && $G $D/$F.dir/bug1.go && errchk $G $D/$F.dir/bug2.go
-
-// NOTE: This test is not run by 'run.go' and so not run by all.bash.
-// To run this test you must use the ./run shell script.
+// errorcheckdir
 
 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-ignored
+package ignored