Use register arguments for RestParamAccessStub

src/interface-descriptors.h

Index: src/interface-descriptors.h
diff --git a/src/interface-descriptors.h b/src/interface-descriptors.h
index 0e21cde89dcb48da14a5545c5e101a339c682e07..809ff46282605c6a152fed1b8851e3e345afc73f 100644
--- a/src/interface-descriptors.h
+++ b/src/interface-descriptors.h
@@ -68,6 +68,7 @@ class PlatformInterfaceDescriptor;
   V(ApiGetter)                                \
   V(ArgumentsAccessRead)                      \
   V(ArgumentsAccessNew)                       \
+  V(RestParamAccess)                          \
   V(StoreArrayLiteralElement)                 \
   V(LoadGlobalViaContext)                     \
   V(StoreGlobalViaContext)                    \
@@ -711,6 +712,17 @@ class ArgumentsAccessNewDescriptor : public CallInterfaceDescriptor {
 };
 
 
+class RestParamAccessDescriptor : public CallInterfaceDescriptor {
+ public:
+  DECLARE_DESCRIPTOR_WITH_CUSTOM_FUNCTION_TYPE(RestParamAccessDescriptor,
+                                               CallInterfaceDescriptor)
+  static const Register parameter_count();
+  static const Register parameter_pointer();
+  static const Register rest_parameter_index();
+  static const Register language_mode();
+};
+
+
 class StoreArrayLiteralElementDescriptor : public CallInterfaceDescriptor {
  public:
   DECLARE_DESCRIPTOR(StoreArrayLiteralElementDescriptor,