gc: fix imported and not used message - show path
R=ken2
CC=golang-dev
https://golang.org/cl/229046
diff --git a/test/import4.go b/test/import4.go
new file mode 100644
index 0000000..1ae1d0e
--- /dev/null
+++ b/test/import4.go
@@ -0,0 +1,24 @@
+// $G $D/empty.go && errchk $G $D/$F.go
+
+// 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.
+
+package main
+
+// various kinds of imported and not used
+
+// standard
+import "fmt" // ERROR "imported and not used.*fmt"
+
+// renamed
+import X "math" // ERROR "imported and not used.*math"
+
+// import dot
+import . "bufio" // ERROR "imported and not used.*bufio"
+
+// again, package without anything in it
+import "./empty" // ERROR "imported and not used.*empty"
+import Z "./empty" // ERROR "imported and not used.*empty"
+import . "./empty" // ERROR "imported and not used.*empty"
+
