// Copyright 2022 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 decl

func a() {
	var c bool // want `b declared but not used`
	panic(c)

	if 1 == 1 {
	}
}

func b() {
	// b is a variable
}

func c() {
	var (
		d string
	)
	panic(d)
}
