| // errorcheck -d=panic | |
| // Copyright 2017 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. | |
| // Issue 20245: panic while formatting an error message | |
| package p | |
| var e = interface{ I1 } // ERROR "undefined: I1" |