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

src/ic/arm64/handler-compiler-arm64.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_ARM64
 
 #include "src/ic/call-optimization.h"
 #include "src/ic/handler-compiler.h"
@@ skipping 249 matching lines @@
     // We have to return the passed value, not the return value of the setter.
     __ Pop(x0);
 
     // Restore context register.
     __ Ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
   }
   __ Ret();
 }
 
 
-void NamedLoadHandlerCompiler::GenerateSlow(MacroAssembler* masm) {
-  // Push receiver and key for runtime call.
-  __ Push(LoadDescriptor::ReceiverRegister(), LoadDescriptor::NameRegister());
-
-  // The slow case calls into the runtime to complete the load without causing
-  // an IC miss that would otherwise cause a transition to the generic stub.
-  ExternalReference ref =
-      ExternalReference(IC_Utility(IC::kLoadIC_Slow), masm->isolate());
-  __ TailCallExternalReference(ref, 2, 1);
-}
-
-
-void ElementHandlerCompiler::GenerateLoadSlow(MacroAssembler* masm) {
-  // Push receiver and key for runtime call.
-  __ Push(LoadDescriptor::ReceiverRegister(), LoadDescriptor::NameRegister());
-
-  // The slow case calls into the runtime to complete the load without causing
-  // an IC miss that would otherwise cause a transition to the generic stub.
-  ExternalReference ref =
-      ExternalReference(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) {
   {
     FrameScope scope(masm, StackFrame::INTERNAL);
 
     if (accessor_index >= 0) {
       DCHECK(!AreAliased(holder, scratch));
       DCHECK(!AreAliased(receiver, scratch));
       // Call the JavaScript getter with the receiver on the stack.
@@ skipping 517 matching lines @@
   // Return the generated code.
   return GetCode(kind(), Code::FAST, name);
 }
 
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_IA32