[runtime] Add fast-paths for common conversion methods

src/objects.h

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 #include <memory>
 
@@ skipping 1295 matching lines @@
       Isolate* isolate, Handle<Object> input);
 
   // ES6 section 7.1.12 ToString
   MUST_USE_RESULT static inline MaybeHandle<String> ToString(
       Isolate* isolate, Handle<Object> input);
 
   static Handle<String> NoSideEffectsToString(Isolate* isolate,
                                               Handle<Object> input);
 
   // ES6 section 7.1.14 ToPropertyKey
-  MUST_USE_RESULT static MaybeHandle<Object> ToPropertyKey(
+  MUST_USE_RESULT static inline MaybeHandle<Object> ToPropertyKey(
       Isolate* isolate, Handle<Object> value);
 
   // ES6 section 7.1.15 ToLength
-  MUST_USE_RESULT static MaybeHandle<Object> ToLength(Isolate* isolate,
-                                                      Handle<Object> input);
+  MUST_USE_RESULT static inline MaybeHandle<Object> ToLength(
+      Isolate* isolate, Handle<Object> input);
 
   // ES6 section 7.1.17 ToIndex
-  MUST_USE_RESULT static MaybeHandle<Object> ToIndex(
+  MUST_USE_RESULT static inline MaybeHandle<Object> ToIndex(
       Isolate* isolate, Handle<Object> input,
       MessageTemplate::Template error_index);
 
   // ES6 section 7.3.9 GetMethod
   MUST_USE_RESULT static MaybeHandle<Object> GetMethod(
       Handle<JSReceiver> receiver, Handle<Name> name);
 
   // ES6 section 7.3.17 CreateListFromArrayLike
   MUST_USE_RESULT static MaybeHandle<FixedArray> CreateListFromArrayLike(
       Isolate* isolate, Handle<Object> object, ElementTypes element_types);
@@ skipping 214 matching lines @@
   Map* GetPrototypeChainRootMap(Isolate* isolate);
 
   // Helper for SetProperty and SetSuperProperty.
   // Return value is only meaningful if [found] is set to true on return.
   MUST_USE_RESULT static Maybe<bool> SetPropertyInternal(
       LookupIterator* it, Handle<Object> value, LanguageMode language_mode,
       StoreFromKeyed store_mode, bool* found);
 
   MUST_USE_RESULT static MaybeHandle<Name> ConvertToName(Isolate* isolate,
                                                          Handle<Object> input);
+  MUST_USE_RESULT static MaybeHandle<Object> ConvertToPropertyKey(
+      Isolate* isolate, Handle<Object> value);
   MUST_USE_RESULT static MaybeHandle<String> ConvertToString(
       Isolate* isolate, Handle<Object> input);
   MUST_USE_RESULT static MaybeHandle<Object> ConvertToNumber(
       Isolate* isolate, Handle<Object> input);
   MUST_USE_RESULT static MaybeHandle<Object> ConvertToInteger(
       Isolate* isolate, Handle<Object> input);
   MUST_USE_RESULT static MaybeHandle<Object> ConvertToInt32(
       Isolate* isolate, Handle<Object> input);
   MUST_USE_RESULT static MaybeHandle<Object> ConvertToUint32(
       Isolate* isolate, Handle<Object> input);
+  MUST_USE_RESULT static MaybeHandle<Object> ConvertToLength(
+      Isolate* isolate, Handle<Object> input);
+  MUST_USE_RESULT static MaybeHandle<Object> ConvertToIndex(
+      Isolate* isolate, Handle<Object> input,
+      MessageTemplate::Template error_index);
+
   DISALLOW_IMPLICIT_CONSTRUCTORS(Object);
 };
 
 
 // In objects.h to be usable without objects-inl.h inclusion.
 bool Object::IsSmi() const { return HAS_SMI_TAG(this); }
 bool Object::IsHeapObject() const { return Internals::HasHeapObjectTag(this); }
 
 
 struct Brief {
@@ skipping 10443 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_