Fix missing smi check in inlined indexOf/lastIndexOf.

test/mjsunit/regress/regress-crbug-382513.js

Index: test/mjsunit/regress/regress-crbug-382513.js
diff --git a/test/mjsunit/regress/regress-347906.js b/test/mjsunit/regress/regress-crbug-382513.js
similarity index 70%
copy from test/mjsunit/regress/regress-347906.js
copy to test/mjsunit/regress/regress-crbug-382513.js
index c751618928c93015679087ee1b500637657aa341..be8733c5e411e4b1ce2670a3317463c801b1aaa8 100644
--- a/test/mjsunit/regress/regress-347906.js
+++ b/test/mjsunit/regress/regress-crbug-382513.js
@@ -1,13 +1,10 @@
 // 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-native-syntax
 
-// Flags: --allow-natives-syntax --harmony
-
-function foo() {
-  return Math.clz32(12.34);
-}
-
+function foo() { return [+0,false].indexOf(-(4/3)); }
 foo();
 foo();
 %OptimizeFunctionOnNextCall(foo);