golang issue48472 代码
文件路径：/src/cmd/compile/internal/types2/testdata/fixedbugs/issue48472.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
func g() {
var s string
var i int
_ = s /* ERROR invalid operation: s \+ i \(mismatched types string and int\) */ + i
}
func f(i int) int {
i /* ERROR invalid operation: i \+= "1" \(mismatched types int and untyped string\) */ += "1"
return i
}