the last bug involving type hashes

R=ken
OCL=34244
CL=34249
diff --git a/test/fixedbugs/bug201.go b/test/fixedbugs/bug201.go
new file mode 100644
index 0000000..81989ff
--- /dev/null
+++ b/test/fixedbugs/bug201.go
@@ -0,0 +1,36 @@
+// $G $D/$F.go && $L $F.$A && ./$A.out
+
+// 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
+
+type T1 struct { x, y int; }
+type T2 struct { z, w byte; }
+type T3 T1
+
+type MyInt int
+func (MyInt) m(*T1) { }
+
+func main() {
+	{
+		var i interface{} = new(T1);
+		v1, ok1 := i.(*T1);
+		v2, ok2 := i.(*T2);
+		v3, ok3 := i.(*T3);
+		if !ok1 || ok2 || ok3 {
+			panicln("*T1", ok1, ok2, ok3);
+		}
+	}
+	{
+		var i interface{} = MyInt(0);
+		v1, ok1 := i.(interface{ m(*T1) });
+		v2, ok2 := i.(interface{ m(*T2) });
+		v3, ok3 := i.(interface{ m(*T3) });
+		if !ok1 || ok2 || ok3 {
+			panicln("T", ok1, ok2, ok3);
+		}
+	}
+}
+