Introduce a code stub version of Array.prototype.push

src/arm64/code-stubs-arm64.cc

Index: src/arm64/code-stubs-arm64.cc
diff --git a/src/arm64/code-stubs-arm64.cc b/src/arm64/code-stubs-arm64.cc
index 35d9e0146a657c0daa3d0621559a3a898f758c81..7e9c33a41a4b2469b04b1fd9175e144239377d60 100644
--- a/src/arm64/code-stubs-arm64.cc
+++ b/src/arm64/code-stubs-arm64.cc
@@ -82,6 +82,10 @@ void InternalArrayNoArgumentConstructorStub::InitializeDescriptor(
   InitializeInternalArrayConstructorDescriptor(isolate(), descriptor, 0);
 }
 
+void FastArrayPushStub::InitializeDescriptor(CodeStubDescriptor* descriptor) {
+  Address deopt_handler = Runtime::FunctionForId(Runtime::kArrayPush)->entry;
+  descriptor->Initialize(x0, deopt_handler, -1, JS_FUNCTION_STUB_MODE);
+}
 
 void InternalArraySingleArgumentConstructorStub::InitializeDescriptor(
     CodeStubDescriptor* descriptor) {