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Filename : issue19977.go

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// errorcheck

// Copyright 2017 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.

// Issue 19977: multiple error messages when type switching on an undefined

package foo

func Foo() {
	switch x := a.(type) { // ERROR "undefined: a|reference to undefined name .*a"
	default:
		_ = x
	}
}