A64: Add a test for HToFastProperties.

test/mjsunit/compiler/to-fast-properties.js

-// Copyright 2008 the V8 project authors. All rights reserved.
+// Copyright 2014 the V8 project authors. All rights reserved.
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 // modification, are permitted provided that the following conditions are
 // met:
 //
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 //       notice, this list of conditions and the following disclaimer.
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 //       copyright notice, this list of conditions and the following
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 //       with the distribution.
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 //       contributors may be used to endorse or promote products derived
 //       from this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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-function f() {
-  try {
-    throw "foo";
-  } catch (e) {
-    throw "bar";
-  } finally {
-    return 4;
+// This test requires OSR or --stress-runs=3 to optimize the top level script.
+
+for (var i = 0; i < 3; i++) {
+  // HToFastProperties is used for top-level object literals that have
+  // function property.
+  var obj = {
+    index: function() { return i; },
+    x: 0
   }
+  var n = 10000;
+  // Loop to hit OSR.
+  for (var j = 0; j < n; j++) {
+    obj.x += i;
+  }
+  assertEquals(obj.index() * n, obj.x);
 }
-
-function g() {
-  while (true) {
-    try {
-      throw "foo";
-    } catch (e) {
-      throw "bar";
-    } finally {
-      break;
-    }
-  }
-}
-
-f();
-g();