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

src/ppc/interface-descriptors-ppc.cc

Index: src/ppc/interface-descriptors-ppc.cc
diff --git a/src/ppc/interface-descriptors-ppc.cc b/src/ppc/interface-descriptors-ppc.cc
index feb81c4b2d3f93ab8e374b18a3359a43e6fd658c..699146087451865016fca3699fd51ba8b4941aa9 100644
--- a/src/ppc/interface-descriptors-ppc.cc
+++ b/src/ppc/interface-descriptors-ppc.cc
@@ -285,34 +285,6 @@ void StringAddDescriptor::InitializePlatformSpecific(
   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[] = {