[Interpreter] Support for operator new.

src/arm64/interface-descriptors-arm64.cc

Index: src/arm64/interface-descriptors-arm64.cc
diff --git a/src/arm64/interface-descriptors-arm64.cc b/src/arm64/interface-descriptors-arm64.cc
index 39df17a8b81ba75ac15f4208868a3b22f55d0ac4..eba696fa742afcb3cfe153ec6dad43763d91f15b 100644
--- a/src/arm64/interface-descriptors-arm64.cc
+++ b/src/arm64/interface-descriptors-arm64.cc
@@ -449,6 +449,18 @@ void InterpreterPushArgsAndCallDescriptor::InitializePlatformSpecific(
 }
 
 
+void InterpreterPushArgsAndConstructDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  Register registers[] = {
+      x0,  // argument count (not including receiver)
+      x3,  // original constructor
+      x1,  // constructor to call
+      x2   // address of the first argument
+  };
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
+
+
 void InterpreterCEntryDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {