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

src/stub-cache.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 1273 matching lines @@
 void CallStubCompiler::GenerateJumpFunctionIgnoreReceiver(
     Handle<JSFunction> function) {
   ParameterCount expected(function);
   __ InvokeFunction(function, expected, arguments(),
                     JUMP_FUNCTION, NullCallWrapper(), call_kind());
 }
 
 
 void CallStubCompiler::GenerateJumpFunction(Handle<Object> object,
                                             Handle<JSFunction> function) {
-  PatchGlobalProxy(object, function);
+  PatchImplicitReceiver(object);
   GenerateJumpFunctionIgnoreReceiver(function);
 }
 
 
 void CallStubCompiler::GenerateJumpFunction(Handle<Object> object,
                                             Register actual_closure,
                                             Handle<JSFunction> function) {
-  PatchGlobalProxy(object, function);
+  PatchImplicitReceiver(object);
   ParameterCount expected(function);
   __ InvokeFunction(actual_closure, expected, arguments(),
                     JUMP_FUNCTION, NullCallWrapper(), call_kind());
 }
 
 
 Handle<Code> CallStubCompiler::CompileCallConstant(
     Handle<Object> object,
     Handle<JSObject> holder,
     Handle<Name> name,
@@ skipping 728 matching lines @@
           Handle<FunctionTemplateInfo>(
               FunctionTemplateInfo::cast(signature->receiver()));
     }
   }
 
   is_simple_api_call_ = true;
 }
 
 
 } }  // namespace v8::internal