[builtins] Introduce new TFC macro and auto-generate TFS descriptors

src/ppc/interface-descriptors-ppc.cc

 // Copyright 2014 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.
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/interface-descriptors.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 267 matching lines @@
   Register registers[] = {r4};
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
 void StringAddDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {r4, r3};
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
-
-void KeyedDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {
-      r5,  // key
-  };
-  data->InitializePlatformSpecific(arraysize(registers), registers);
-}
-
-
-void NamedDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {
-      r5,  // name
-  };
-  data->InitializePlatformSpecific(arraysize(registers), registers);
-}
-
-
-void CallHandlerDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {
-      r3,  // receiver
-  };
-  data->InitializePlatformSpecific(arraysize(registers), registers);
-}
-
-
 void ArgumentAdaptorDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {
       r4,  // JSFunction
       r6,  // the new target
       r3,  // actual number of arguments
       r5,  // expected number of arguments
   };
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
@@ skipping 75 matching lines @@
   Register registers[] = {
       r4,  // loaded new FP
   };
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC