golang issue49705 代码
文件路径：/src/go/types/testdata/fixedbugs/issue49705.go
/ Copyright 2021 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
type Integer interface {
~int | ~int8 | ~int16 | ~int32 | ~int64 |
~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr
}
func shl[I Integer](n int) I {
return 1 << n
}