code review 163085: move ReadFile, WriteFile, and ReadDir into a separate i...

src/pkg/ebnf/ebnf_test.go

 // 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.
 
 package ebnf
 
 import (
-        "io";
+        "io/ioutil";
         "strings";
         "testing";
 )
 
 
 var grammars = []string{
         `Program = .
         `,
 
         `Program = foo .
@@ skipping 39 matching lines @@
 }
 
 
 var files = []string{
 // TODO(gri) add some test files
 }
 
 
 func TestFiles(t *testing.T) {
         for _, filename := range files {
-                src, err := io.ReadFile(filename);
+                src, err := ioutil.ReadFile(filename);
                 if err != nil {
                         t.Fatal(err)
                 }
                 check(t, filename, src);
         }
 }