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/usr/share/go-1.8/test/import4.go is in golang-1.8-src 1.8.3-2ubuntu1.

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// errorcheckdir

// Copyright 2009 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.

// Verify that various kinds of "imported and not used"
// errors are caught by the compiler.
// Does not compile.

package ignored