code review 112970044: go/*: permit "for range x"

src/pkg/go/parser/short_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.
 
 // This file contains test cases for short valid and invalid programs.
 
 package parser
 
 import "testing"
 
@@ skipping 20 matching lines @@
         `package p; func f() { select { case <- c: case c <- d: case c <- <- d: case <-c <- d: } };`,
         `package p; func f() { select { case x := (<-c): } };`,
         `package p; func f() { if ; true {} };`,
         `package p; func f() { switch ; {} };`,
         `package p; func f() { for _ = range "foo" + "bar" {} };`,
         `package p; func f() { var s []int; g(s[:], s[i:], s[:j], s[i:j], s[i:j:k], s[:j:k]) };`,
         `package p; var ( _ = (struct {*T}).m; _ = (interface {T}).m )`,
         `package p; func ((T),) m() {}`,
         `package p; func ((*T),) m() {}`,
         `package p; func (*(T),) m() {}`,
+        `package p; func _(x []int) { for range x {} }`,
 }
 
 func TestValid(t *testing.T) {
         for _, src := range valids {
                 checkErrors(t, src, src)
         }
 }
 
 var invalids = []string{
         `foo /* ERROR "expected 'package'" */ !`,
@@ skipping 41 matching lines @@
         `package p; func f() { go f /* ERROR HERE "function must be invoked" */ }`,
         `package p; func f() { defer func() {} /* ERROR HERE "function must be invoked" */ }`,
         `package p; func f() { go func() { func() { f(x func /* ERROR "expected '\)'" */ (){}) } } }`,
 }
 
 func TestInvalid(t *testing.T) {
         for _, src := range invalids {
                 checkErrors(t, src, src)
         }
 }