Make the strict-mode calling convention for contextual calls the default one.

src/code-stubs.cc

 // Copyright 2012 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 577 matching lines @@
     case READ_ELEMENT: stream->Add("ReadElement"); break;
     case NEW_NON_STRICT_FAST: stream->Add("NewNonStrictFast"); break;
     case NEW_NON_STRICT_SLOW: stream->Add("NewNonStrictSlow"); break;
     case NEW_STRICT: stream->Add("NewStrict"); break;
   }
 }
 
 
 void CallFunctionStub::PrintName(StringStream* stream) {
   stream->Add("CallFunctionStub_Args%d", argc_);
-  if (ReceiverMightBeImplicit()) stream->Add("_Implicit");
   if (RecordCallTarget()) stream->Add("_Recording");
 }
 
 
 void CallConstructStub::PrintName(StringStream* stream) {
   stream->Add("CallConstructStub");
   if (RecordCallTarget()) stream->Add("_Recording");
 }
 
 
@@ skipping 204 matching lines @@
   InstallDescriptor(isolate, &stub3);
 }
 
 InternalArrayConstructorStub::InternalArrayConstructorStub(
     Isolate* isolate) {
   InternalArrayConstructorStubBase::GenerateStubsAheadOfTime(isolate);
 }
 
 
 } }  // namespace v8::internal