Fix invalid loop condition for Array.lastIndexOf().

BUG=380512
LOG=y
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/313073003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21665 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/hydrogen.cc

@@ -8385,7 +8385,7 @@ HValue* HOptimizedGraphBuilder::BuildArrayIndexOf(HValue* receiver,
     ASSERT_EQ(kLastIndexOf, mode);
     initial = length;
     terminating = graph()->GetConstant0();
-    token = Token::GTE;
+    token = Token::GT;
     direction = LoopBuilder::kPreDecrement;
   }
 

test/mjsunit/regress/regress-crbug-380512.js

+// Copyright 2014 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: --allow-natives-syntax
+
+function f() { [].lastIndexOf(42); }
+
+f();
+f();
+%OptimizeFunctionOnNextCall(f);
+f();