[Arguments] Remove synthetic properties and all code dealing with them.

arguments/src/x64/codegen-x64.cc

 // Copyright 2011 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 5577 matching lines @@
         frame_->RestoreContextRegister();
         frame_->Push(&result);
       }
 
     } else {
       // -------------------------------------------
       // JavaScript example: 'array[index](1, 2, 3)'
       // -------------------------------------------
 
       // Load the function to call from the property through a reference.
-      if (property->is_synthetic()) {
-        Reference ref(this, property, false);
-        ref.GetValue();
-        // Use global object as receiver.
-        LoadGlobalReceiver();
-       // Call the function.
-        CallWithArguments(args, RECEIVER_MIGHT_BE_VALUE, node->position());
-      } else {
-        // Push the receiver onto the frame.
-        Load(property->obj());
+      Load(property->obj());
 
-        // Load the name of the function.
-        Load(property->key());
+      // Load the name of the function.
+      Load(property->key());
 
-        // Swap the name of the function and the receiver on the stack to follow
-        // the calling convention for call ICs.
-        Result key = frame_->Pop();
-        Result receiver = frame_->Pop();
-        frame_->Push(&key);
-        frame_->Push(&receiver);
-        key.Unuse();
-        receiver.Unuse();
+      // Swap the name of the function and the receiver on the stack to follow
+      // the calling convention for call ICs.
+      Result key = frame_->Pop();
+      Result receiver = frame_->Pop();
+      frame_->Push(&key);
+      frame_->Push(&receiver);
+      key.Unuse();
+      receiver.Unuse();
 
-        // Load the arguments.
-        int arg_count = args->length();
-        for (int i = 0; i < arg_count; i++) {
-          Load(args->at(i));
-          frame_->SpillTop();
-        }
+      // Load the arguments.
+      int arg_count = args->length();
+      for (int i = 0; i < arg_count; i++) {
+        Load(args->at(i));
+        frame_->SpillTop();
+      }
 
-        // Place the key on top of stack and call the IC initialization code.
-        frame_->PushElementAt(arg_count + 1);
-        CodeForSourcePosition(node->position());
-        Result result = frame_->CallKeyedCallIC(RelocInfo::CODE_TARGET,
-                                                arg_count,
-                                                loop_nesting());
-        frame_->Drop();  // Drop the key still on the stack.
-        frame_->RestoreContextRegister();
-        frame_->Push(&result);
-      }
+      // Place the key on top of stack and call the IC initialization code.
+      frame_->PushElementAt(arg_count + 1);
+      CodeForSourcePosition(node->position());
+      Result result = frame_->CallKeyedCallIC(RelocInfo::CODE_TARGET,
+                                              arg_count,
+                                              loop_nesting());
+      frame_->Drop();  // Drop the key still on the stack.
+      frame_->RestoreContextRegister();
+      frame_->Push(&result);
     }
   } else {
     // ----------------------------------
     // JavaScript example: 'foo(1, 2, 3)'  // foo is not global
     // ----------------------------------
 
     // Load the function.
     Load(function);
 
     // Pass the global proxy as the receiver.
@@ skipping 3179 matching lines @@
 }
 
 #endif
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64