Revert of [strong] Implement strong mode restrictions on property access

src/ic/x64/handler-compiler-x64.cc

 // 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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/ic/call-optimization.h"
 #include "src/ic/handler-compiler.h"
@@ skipping 243 matching lines @@
     // We have to return the passed value, not the return value of the setter.
     __ Pop(rax);
 
     // Restore context register.
     __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
   }
   __ ret(0);
 }
 
 
-static void LoadIC_PushArgs(MacroAssembler* masm) {
-  Register receiver = LoadDescriptor::ReceiverRegister();
-  Register name = LoadDescriptor::NameRegister();
-
-  DCHECK(!rbx.is(receiver) && !rbx.is(name));
-
-  __ PopReturnAddressTo(rbx);
-  __ Push(receiver);
-  __ Push(name);
-  __ PushReturnAddressFrom(rbx);
-}
-
-
-void NamedLoadHandlerCompiler::GenerateSlow(MacroAssembler* masm) {
-  // Return address is on the stack.
-  LoadIC_PushArgs(masm);
-
-  // Do tail-call to runtime routine.
-  ExternalReference ref(IC_Utility(IC::kLoadIC_Slow), masm->isolate());
-  __ TailCallExternalReference(ref, 2, 1);
-}
-
-
-void ElementHandlerCompiler::GenerateLoadSlow(MacroAssembler* masm) {
-  // Return address is on the stack.
-  LoadIC_PushArgs(masm);
-
-  // Do tail-call to runtime routine.
-  ExternalReference ref(IC_Utility(IC::kKeyedLoadIC_Slow), masm->isolate());
-  __ TailCallExternalReference(ref, 2, 1);
-}
-
-
 void NamedLoadHandlerCompiler::GenerateLoadViaGetter(
     MacroAssembler* masm, Handle<Map> map, Register receiver, Register holder,
     int accessor_index, int expected_arguments, Register scratch) {
   // ----------- S t a t e -------------
   //  -- rax    : receiver
   //  -- rcx    : name
   //  -- rsp[0] : return address
   // -----------------------------------
   {
     FrameScope scope(masm, StackFrame::INTERNAL);
@@ skipping 526 matching lines @@
   // Return the generated code.
   return GetCode(kind(), Code::NORMAL, name);
 }
 
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64