cmd/gc: fix missing slice/array types in export data.

Fixes #5614.

R=golang-dev
CC=golang-dev
https://golang.org/cl/9953044
diff --git a/test/fixedbugs/issue5614.go b/test/fixedbugs/issue5614.go
new file mode 100644
index 0000000..f2518d2
--- /dev/null
+++ b/test/fixedbugs/issue5614.go
@@ -0,0 +1,11 @@
+// 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 5614: exported data for inlining may miss
+// named types when used in implicit conversion to
+// their underlying type.
+
+package ignored