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

src/x64/interface-descriptors-x64.cc

Index: src/x64/interface-descriptors-x64.cc
diff --git a/src/x64/interface-descriptors-x64.cc b/src/x64/interface-descriptors-x64.cc
index 746b25b8e2056db110b7020e8f3529878979b642..f47d221df6db486a6c30b7536150254b180d252a 100644
--- a/src/x64/interface-descriptors-x64.cc
+++ b/src/x64/interface-descriptors-x64.cc
@@ -286,34 +286,6 @@ void StringAddDescriptor::InitializePlatformSpecific(
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
-
-void KeyedDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {
-      rcx,  // key
-  };
-  data->InitializePlatformSpecific(arraysize(registers), registers);
-}
-
-
-void NamedDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {
-      rcx,  // name
-  };
-  data->InitializePlatformSpecific(arraysize(registers), registers);
-}
-
-
-void CallHandlerDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {
-      rdx,  // receiver
-  };
-  data->InitializePlatformSpecific(arraysize(registers), registers);
-}
-
-
 void ArgumentAdaptorDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {