Built go1.4.2 from source.

Change-Id: If9a300f7aacf0d8fb5e720945e0aa2fc68193270
diff --git a/test/fixedbugs/bug272.go b/test/fixedbugs/bug272.go
new file mode 100644
index 0000000..c27f7ee
--- /dev/null
+++ b/test/fixedbugs/bug272.go
@@ -0,0 +1,25 @@
+// run
+
+// Copyright 2010 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.
+
+// http://code.google.com/p/go/issues/detail?id=589
+
+package main
+
+func main() {	
+	n := int64(100)
+	x := make([]int, n)
+	x[99] = 234;	
+	z := x[n-1]
+	if z != 234 {
+		println("BUG")
+	}
+	n |= 1<<32
+	defer func() {
+		recover()
+	}()
+	z = x[n-1]
+	println("BUG2")
+}