golang issue13263 代码
文件路径：/test/fixedbugs/issue13263.go
/ 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 b
var (
x uint
y = x
z = uintptr(y)
a = uint32(y)
b = uint64(y)
)