| // errorcheck | 
 |  | 
 | // 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 main | 
 |  | 
 | type I1 interface { I2 }	// ERROR "interface" | 
 | type I2 int | 
 |  | 
 | type I3 interface { int }	// ERROR "interface" | 
 |  | 
 | type S struct { | 
 | 	x interface{ S }	// ERROR "interface" | 
 | } | 
 | type I4 interface { // GC_ERROR "invalid recursive type" | 
 | 	I4	// GCCGO_ERROR "interface" | 
 | } | 
 |  | 
 | type I5 interface { | 
 | 	I6	// GCCGO_ERROR "interface" | 
 | } | 
 |  | 
 | type I6 interface { // GC_ERROR "invalid recursive type" | 
 | 	I5	// GCCGO_ERROR "interface" | 
 | } |