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

src/mips/interface-descriptors-mips.cc

Index: src/mips/interface-descriptors-mips.cc
diff --git a/src/mips/interface-descriptors-mips.cc b/src/mips/interface-descriptors-mips.cc
index b0527241e47a61b6d1a6eab8b17509c9cd74139d..c37a7eb1f9e33b25de4d65677d69c1218bd3193d 100644
--- a/src/mips/interface-descriptors-mips.cc
+++ b/src/mips/interface-descriptors-mips.cc
@@ -284,34 +284,6 @@ void StringAddDescriptor::InitializePlatformSpecific(
   data->InitializePlatformSpecific(arraysize(registers), registers, NULL);
 }
 
-
-void KeyedDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {
-      a2,  // key
-  };
-  data->InitializePlatformSpecific(arraysize(registers), registers);
-}
-
-
-void NamedDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {
-      a2,  // name
-  };
-  data->InitializePlatformSpecific(arraysize(registers), registers);
-}
-
-
-void CallHandlerDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {
-      a0,  // receiver
-  };
-  data->InitializePlatformSpecific(arraysize(registers), registers);
-}
-
-
 void ArgumentAdaptorDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {