Implement handlified String::Equals and Name::Equals.

src/v8conversions.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 46 matching lines @@
   return DoubleToInt32(number->Number());
 }
 
 
 inline uint32_t NumberToUint32(Object* number) {
   if (number->IsSmi()) return Smi::cast(number)->value();
   return DoubleToUint32(number->Number());
 }
 
 
-// Converts a string into a double value according to ECMA-262 9.3.1
 double StringToDouble(UnicodeCache* unicode_cache,
-                      String* str,
+                      String* string,
                       int flags,
-                      double empty_string_val = 0);
+                      double empty_string_val = 0.0);
 
-// Converts a string into an integer.
-double StringToInt(UnicodeCache* unicode_cache, String* str, int radix);
 
 inline bool TryNumberToSize(Isolate* isolate,
                             Object* number, size_t* result) {
   SealHandleScope shs(isolate);
   if (number->IsSmi()) {
     int value = Smi::cast(number)->value();
     ASSERT(
         static_cast<unsigned>(Smi::kMaxValue)
           <= std::numeric_limits<size_t>::max());
     if (value >= 0) {
@@ skipping 19 matching lines @@
                            Object* number) {
   size_t result = 0;
   bool is_valid = TryNumberToSize(isolate, number, &result);
   CHECK(is_valid);
   return result;
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_V8CONVERSIONS_H_