Introduce a code stub version of Array.prototype.push

src/interface-descriptors.h

Index: src/interface-descriptors.h
diff --git a/src/interface-descriptors.h b/src/interface-descriptors.h
index ebd54566bfc1a4b175b0d67851aae0fbca6e3ce9..229e39204da2a78c192fff062b1d445e696dd196 100644
--- a/src/interface-descriptors.h
+++ b/src/interface-descriptors.h
@@ -23,6 +23,7 @@ class PlatformInterfaceDescriptor;
   V(VectorStoreIC)                            \
   V(InstanceOf)                               \
   V(LoadWithVector)                           \
+  V(FastArrayPush)                            \
   V(FastNewClosure)                           \
   V(FastNewContext)                           \
   V(FastNewObject)                            \
@@ -811,6 +812,11 @@ class ContextOnlyDescriptor : public CallInterfaceDescriptor {
   DECLARE_DESCRIPTOR(ContextOnlyDescriptor, CallInterfaceDescriptor)
 };
 
+class FastArrayPushDescriptor : public CallInterfaceDescriptor {
+ public:
+  DECLARE_DESCRIPTOR_WITH_CUSTOM_FUNCTION_TYPE(FastArrayPushDescriptor,
+                                               CallInterfaceDescriptor)
+};
 
 class GrowArrayElementsDescriptor : public CallInterfaceDescriptor {
  public: