[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 82616493aef3e8fc921eee41cc20ef606d683d67..73280be373714cc443dc197c31f0794bffc09179 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[] = {