Convert KeyedLoad indexed interceptor case to a Handler.

src/ia32/code-stubs-ia32.cc

Index: src/ia32/code-stubs-ia32.cc
diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc
index ecd27c08104119fe3a75fcd297b732dd209114dd..e9633a14f3d74dd4ab393d73eb6d3fd097c46aaf 100644
--- a/src/ia32/code-stubs-ia32.cc
+++ b/src/ia32/code-stubs-ia32.cc
@@ -659,6 +659,36 @@ void FunctionPrototypeStub::Generate(MacroAssembler* masm) {
 }
 
 
+void LoadIndexedInterceptorStub::Generate(MacroAssembler* masm) {
+  // Return address is on the stack.
+  Label slow;
+
+  Register receiver = LoadDescriptor::ReceiverRegister();
+  Register key = LoadDescriptor::NameRegister();
+  Register scratch = eax;
+  DCHECK(!scratch.is(receiver) && !scratch.is(key));
+
+  // Check that the key is an array index, that is Uint32.
+  __ test(key, Immediate(kSmiTagMask | kSmiSignMask));
+  __ j(not_zero, &slow);
+
+  // Everything is fine, call runtime.
+  __ pop(scratch);
+  __ push(receiver);  // receiver
+  __ push(key);       // key
+  __ push(scratch);   // return address
+
+  // Perform tail call to the entry.
+  ExternalReference ref = ExternalReference(
+      IC_Utility(IC::kLoadElementWithInterceptor), masm->isolate());
+  __ TailCallExternalReference(ref, 2, 1);
+
+  __ bind(&slow);
+  PropertyAccessCompiler::TailCallBuiltin(
+      masm, PropertyAccessCompiler::MissBuiltin(Code::KEYED_LOAD_IC));
+}
+
+
 void ArgumentsAccessStub::GenerateReadElement(MacroAssembler* masm) {
   // The key is in edx and the parameter count is in eax.
   DCHECK(edx.is(ArgumentsAccessReadDescriptor::index()));