[destructuring] Re-index materialized literals in arrow function parameters.

test/mjsunit/harmony/destructuring-parameters-literalcount.js

Index: test/mjsunit/harmony/destructuring-parameters-literalcount.js
diff --git a/test/mjsunit/harmony/destructuring-parameters-literalcount.js b/test/mjsunit/harmony/destructuring-parameters-literalcount.js
new file mode 100644
index 0000000000000000000000000000000000000000..85a45ea8223c59a82dc2f06d631d7b527d6a6fd8
--- /dev/null
+++ b/test/mjsunit/harmony/destructuring-parameters-literalcount.js
@@ -0,0 +1,41 @@
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// Flags: --harmony-destructuring --harmony-computed-property-names
+// Flags: --harmony-arrow-functions --allow-natives-syntax
+
+
+var t1 = [1];
+var t2 = [2];
+var t3 = [3];
+var t4 = [4];
+var t5 = [5];
+function g({x = {a:10,b:20}},
+           {y = [1,2,3],
+            n = [],
+            p = /abc/}) {
+  assertSame(10, x.a);
+  assertSame(20, x.b);
+  assertSame(2, y[1]);
+  assertSame(0, n.length);
+  assertTrue(p.test("abc"));
+}
+g({},{});
+%OptimizeFunctionOnNextCall(g);
+g({},{});
+
+
+var h = ({x = {a:10,b:20}},
+         {y = [1,2,3],
+          n = [],
+          p = /abc/ }) => {
+    assertSame(10, x.a);
+    assertSame(20, x.b);
+    assertSame(2, y[1]);
+    assertSame(0, n.length);
+    assertTrue(p.test("abc"));
+  };
+h({},{});
+%OptimizeFunctionOnNextCall(h);
+h({},{});