[builtins] implement Array.prototype.includes in TurboFan

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 4a177dc0e191bf1f38548ab2f2dd95d6f2adba4f..745a1c22ce5b7cc563be1aa9a05f7089eb93824f 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -2004,6 +2004,11 @@ class JSReceiver: public HeapObject {
   MUST_USE_RESULT static MaybeHandle<FixedArray> GetOwnEntries(
       Handle<JSReceiver> object, PropertyFilter filter);
 
+  MUST_USE_RESULT static Maybe<bool> IncludesValue(Isolate* isolate,
+                                                   Handle<JSReceiver> object,
+                                                   Handle<Object> value,
+                                                   Handle<Object> start_from);
+
   // Layout description.
   static const int kPropertiesOffset = HeapObject::kHeaderSize;
   static const int kHeaderSize = HeapObject::kHeaderSize + kPointerSize;
@@ -2195,6 +2200,9 @@ class JSObject: public JSReceiver {
   static bool UnregisterPrototypeUser(Handle<Map> user, Isolate* isolate);
   static void InvalidatePrototypeChains(Map* map);
 
+  // Utility used by many Array builtins and runtime functions
+  static inline bool PrototypeHasNoElements(Isolate* isolate, JSObject* object);
+
   // Alternative implementation of WeakFixedArray::NullCallback.
   class PrototypeRegistryCompactionCallback {
    public: