test: add test for issue 15602

The problem was fixed by the rollback in CL 22930.
This CL just adds a test to prevent regressions.

Fixes #15602

Change-Id: I37453f6e18ca43081266fe7f154c6d63fbaffd9b
Reviewed-on: https://go-review.googlesource.com/22931
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This commit is contained in:
Josh Bleecher Snyder 2016-05-08 14:32:48 -07:00
parent 55546efeee
commit 3696e469e5

View file

@ -0,0 +1,11 @@
// compile
// Copyright 2016 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 p
func f(i interface{}) {
i, _ = i.(error)
}