Introduce a code stub version of Array.prototype.push

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 f724e5d48a112ebdf1e10f5be266087299de9e2e..5cc1f2ded544a462378b3136968c88fbb88028a9 100644
--- a/src/x64/interface-descriptors-x64.cc
+++ b/src/x64/interface-descriptors-x64.cc
@@ -307,6 +307,12 @@ void InternalArrayConstructorDescriptor::InitializePlatformSpecific(
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
+void FastArrayPushDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  // stack param count needs (arg count)
+  Register registers[] = {rax};
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
 
 void CompareDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {