Get rid of unnecessary handle management when invoking interceptors.

src/arm/stub-cache-arm.cc

 // Copyright 2006-2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 487 matching lines @@
   Register reg =
       CheckPrototypes(object, receiver, holder, scratch1, scratch2, name, miss);
 
   // Push the arguments on the JS stack of the caller.
   __ push(receiver);  // receiver
   __ push(reg);  // holder
   __ push(name_reg);  // name
   __ mov(scratch1, Operand(lookup_hint));
   __ push(scratch1);
 
+  InterceptorInfo* interceptor = holder->GetNamedInterceptor();
+  ASSERT(!Heap::InNewSpace(interceptor));
+  __ mov(scratch1, Operand(Handle<Object>(interceptor)));
+  __ push(scratch1);
+  __ ldr(scratch2, FieldMemOperand(scratch1, InterceptorInfo::kDataOffset));
+  __ push(scratch2);
+
   // Do tail-call to the runtime system.
   ExternalReference load_ic_property =
       ExternalReference(IC_Utility(IC::kLoadInterceptorProperty));
-  __ TailCallRuntime(load_ic_property, 4);
+  __ TailCallRuntime(load_ic_property, 6);
 }
 
 
 Object* StubCompiler::CompileLazyCompile(Code::Flags flags) {
   // ----------- S t a t e -------------
   //  -- r1: function
   //  -- lr: return address
   // -----------------------------------
 
   // Enter an internal frame.
@@ skipping 808 matching lines @@
   __ Jump(ic, RelocInfo::CODE_TARGET);
 
   // Return the generated code.
   return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal