test: don't use package main for files without a main function
Part of issue 2833, but works fine with current test runner.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5606056
diff --git a/test/fixedbugs/bug233.go b/test/fixedbugs/bug233.go
index 31bb673..f3d556c 100644
--- a/test/fixedbugs/bug233.go
+++ b/test/fixedbugs/bug233.go
@@ -4,7 +4,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-package main
+package bug233
import p "fmt"
var _ = p.Print
var fmt = 10
