compiler crash in string('a', 'b', '\n');

SVN=128253
diff --git a/test/bugs/bug074.go b/test/bugs/bug074.go
new file mode 100644
index 0000000..947001c
--- /dev/null
+++ b/test/bugs/bug074.go
@@ -0,0 +1,12 @@
+// 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
+
+func main() {
+	x := string('a', 'b', '\n');
+	print x;
+}