// 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.packageissue16153// original test caseconst(x1uint8=255Y1=256)// variationsconst(x2uint8=255Y2)const(X3int64=iotaY3=1)const(X4int64=iotaY4)