test case for issue 471

R=iant
CC=golang-dev
https://golang.org/cl/183084

test/bugs/bug238.go

+// errchk $G -e $D/$F.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.
+
+// Test case for issue 471. This file shouldn't compile.
+
+package main
+
+const a *int = 1        // ERROR "wrong|incompatible"
+const b [2]int = 2      // ERROR "wrong|incompatible"
+const c map[int]int = 3 // ERROR "wrong|incompatible"
+const d chan int = 4    // ERROR "wrong|incompatible"
+const e func() = 5      // ERROR "wrong|incompatible"
+const f struct{} = 6    // ERROR "wrong|incompatible"
+const g interface{} = 7 // ERROR "wrong|incompatible"
+
+func main() { println(a, b, c, d, e, f, g) }

test/golden.out

@@ -148,3 +148,6 @@ panic PC=xxx
 =========== bugs/bug219.go
 bugs/bug219.go:16: syntax error near if
 BUG: bug219
+
+=========== bugs/bug238.go
+BUG: errchk: command succeeded unexpectedly