// 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 issue45985

// TODO(rFindley): this error should be on app[int] below.
func app[S /* ERROR "type S = S does not match" */ interface{ type []T }, T any](s S, e T) S {
    return append(s, e)
}

func _() {
	_ = app[int]
}
