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

src/ppc/full-codegen-ppc.cc

Index: src/ppc/full-codegen-ppc.cc
diff --git a/src/ppc/full-codegen-ppc.cc b/src/ppc/full-codegen-ppc.cc
index bac4496afd68f5124dc3de761bd73901add0c70e..2e34d163a2a93245e6bb8e0d3532f8830e5f14b0 100644
--- a/src/ppc/full-codegen-ppc.cc
+++ b/src/ppc/full-codegen-ppc.cc
@@ -2200,7 +2200,7 @@
       __ LoadP(load_name, MemOperand(sp, 2 * kPointerSize));
       __ mov(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());
       __ mr(r4, r3);
       __ StoreP(r4, MemOperand(sp, 2 * kPointerSize));
@@ -2389,7 +2389,7 @@
   __ mov(LoadDescriptor::NameRegister(), Operand(key->value()));
   __ mov(LoadDescriptor::SlotRegister(),
          Operand(SmiFromSlot(prop->PropertyFeedbackSlot())));
-  CallLoadIC(NOT_CONTEXTUAL, language_mode());
+  CallLoadIC(NOT_CONTEXTUAL);
 }
 
 
@@ -2401,14 +2401,13 @@
   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();
   __ mov(LoadDescriptor::SlotRegister(),
          Operand(SmiFromSlot(prop->PropertyFeedbackSlot())));
   CallIC(ic);
@@ -2417,10 +2416,9 @@
 
 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);
 }
 
 
@@ -2992,7 +2990,6 @@
   VisitForAccumulatorValue(super_ref->this_var());
   __ Push(scratch, r3, r3, scratch);
   __ Push(key->value());
-  __ Push(Smi::FromInt(language_mode()));
 
   // Stack here:
   //  - home_object
@@ -3000,8 +2997,7 @@
   //  - 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.
   __ StoreP(r3, MemOperand(sp, kPointerSize));
@@ -3051,7 +3047,6 @@
   VisitForAccumulatorValue(super_ref->this_var());
   __ Push(scratch, r3, r3, scratch);
   VisitForStackValue(prop->key());
-  __ Push(Smi::FromInt(language_mode()));
 
   // Stack here:
   //  - home_object
@@ -3059,8 +3054,7 @@
   //  - 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.
   __ StoreP(r3, MemOperand(sp, kPointerSize));