cmd/gc: fix corruption in export of &T{} literals.
Composite literals using the &T{} form were incorrectly
exported, leading to weird errors at import time.
Fixes #4879.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7395054
diff --git a/test/fixedbugs/issue4879.go b/test/fixedbugs/issue4879.go
new file mode 100644
index 0000000..842c811
--- /dev/null
+++ b/test/fixedbugs/issue4879.go
@@ -0,0 +1,10 @@
+// compiledir
+
+// Copyright 2013 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 4879: export data misses the '&' for some
+// composite literals in inlined bodies.
+
+package ignored
