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

src/mips/full-codegen-mips.cc

 // Copyright 2012 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_MIPS
 
 // Note on Mips implementation:
 //
@@ skipping 2211 matching lines @@
       __ LoadRoot(load_name, Heap::knext_stringRootIndex);  // "next"
       __ lw(a3, MemOperand(sp, 1 * kPointerSize));          // iter
       __ Push(load_name, a3, a0);                      // "next", iter, received
 
       // result = receiver[f](arg);
       __ bind(&l_call);
       __ lw(load_receiver, MemOperand(sp, kPointerSize));
       __ lw(load_name, MemOperand(sp, 2 * kPointerSize));
       __ li(LoadDescriptor::SlotRegister(),
             Operand(SmiFromSlot(expr->KeyedLoadFeedbackSlot())));
-      Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate(), SLOPPY).code();
+      Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate()).code();
       CallIC(ic, TypeFeedbackId::None());
       __ mov(a0, v0);
       __ mov(a1, a0);
       __ sw(a1, MemOperand(sp, 2 * kPointerSize));
       CallFunctionStub stub(isolate(), 1, CALL_AS_METHOD);
       __ CallStub(&stub);
 
       __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
       __ Drop(1);  // The function is still on the stack; drop it.
 
@@ skipping 150 matching lines @@
 
 
 void FullCodeGenerator::EmitNamedPropertyLoad(Property* prop) {
   SetSourcePosition(prop->position());
   Literal* key = prop->key()->AsLiteral();
   DCHECK(!prop->IsSuperAccess());
 
   __ li(LoadDescriptor::NameRegister(), Operand(key->value()));
   __ li(LoadDescriptor::SlotRegister(),
         Operand(SmiFromSlot(prop->PropertyFeedbackSlot())));
-  CallLoadIC(NOT_CONTEXTUAL, language_mode());
+  CallLoadIC(NOT_CONTEXTUAL);
 }
 
 
 void FullCodeGenerator::EmitNamedSuperPropertyLoad(Property* prop) {
   // Stack: receiver, home_object.
   SetSourcePosition(prop->position());
   Literal* key = prop->key()->AsLiteral();
   DCHECK(!key->value()->IsSmi());
   DCHECK(prop->IsSuperAccess());
 
   __ Push(key->value());
-  __ Push(Smi::FromInt(language_mode()));
-  __ CallRuntime(Runtime::kLoadFromSuper, 4);
+  __ CallRuntime(Runtime::kLoadFromSuper, 3);
 }
 
 
 void FullCodeGenerator::EmitKeyedPropertyLoad(Property* prop) {
   SetSourcePosition(prop->position());
-  Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate(), language_mode()).code();
+  Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate()).code();
   __ li(LoadDescriptor::SlotRegister(),
         Operand(SmiFromSlot(prop->PropertyFeedbackSlot())));
   CallIC(ic);
 }
 
 
 void FullCodeGenerator::EmitKeyedSuperPropertyLoad(Property* prop) {
   // Stack: receiver, home_object, key.
-  __ Push(Smi::FromInt(language_mode()));
   SetSourcePosition(prop->position());
 
-  __ CallRuntime(Runtime::kLoadKeyedFromSuper, 4);
+  __ CallRuntime(Runtime::kLoadKeyedFromSuper, 3);
 }
 
 
 void FullCodeGenerator::EmitInlineSmiBinaryOp(BinaryOperation* expr,
                                               Token::Value op,
                                               Expression* left_expr,
                                               Expression* right_expr) {
   Label done, smi_case, stub_call;
 
   Register scratch1 = a2;
@@ skipping 525 matching lines @@
   Literal* key = prop->key()->AsLiteral();
   DCHECK(!key->value()->IsSmi());
   // Load the function from the receiver.
   const Register scratch = a1;
   SuperPropertyReference* super_ref = prop->obj()->AsSuperPropertyReference();
   VisitForAccumulatorValue(super_ref->home_object());
   __ mov(scratch, v0);
   VisitForAccumulatorValue(super_ref->this_var());
   __ Push(scratch, v0, v0, scratch);
   __ Push(key->value());
-  __ Push(Smi::FromInt(language_mode()));
 
   // Stack here:
   //  - home_object
   //  - this (receiver)
   //  - this (receiver) <-- LoadFromSuper will pop here and below.
   //  - home_object
   //  - key
-  //  - language_mode
-  __ CallRuntime(Runtime::kLoadFromSuper, 4);
+  __ CallRuntime(Runtime::kLoadFromSuper, 3);
 
   // Replace home_object with target function.
   __ sw(v0, MemOperand(sp, kPointerSize));
 
   // Stack here:
   // - target function
   // - this (receiver)
   EmitCall(expr, CallICState::METHOD);
 }
 
@@ skipping 30 matching lines @@
 
   SetSourcePosition(prop->position());
   // Load the function from the receiver.
   const Register scratch = a1;
   SuperPropertyReference* super_ref = prop->obj()->AsSuperPropertyReference();
   VisitForAccumulatorValue(super_ref->home_object());
   __ Move(scratch, v0);
   VisitForAccumulatorValue(super_ref->this_var());
   __ Push(scratch, v0, v0, scratch);
   VisitForStackValue(prop->key());
-  __ Push(Smi::FromInt(language_mode()));
 
   // Stack here:
   //  - home_object
   //  - this (receiver)
   //  - this (receiver) <-- LoadKeyedFromSuper will pop here and below.
   //  - home_object
   //  - key
-  //  - language_mode
-  __ CallRuntime(Runtime::kLoadKeyedFromSuper, 4);
+  __ CallRuntime(Runtime::kLoadKeyedFromSuper, 3);
 
   // Replace home_object with target function.
   __ sw(v0, MemOperand(sp, kPointerSize));
 
   // Stack here:
   // - target function
   // - this (receiver)
   EmitCall(expr, CallICState::METHOD);
 }
 
@@ skipping 2506 matching lines @@
          reinterpret_cast<uint32_t>(
              isolate->builtins()->OsrAfterStackCheck()->entry()));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS