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

src/conversions.h

Index: src/conversions.h
diff --git a/src/conversions.h b/src/conversions.h
index f850f581f06a573dd954401651aa02b36ed95147..c8484e448bec6fb82db0141cd65002f2bbda179f 100644
--- a/src/conversions.h
+++ b/src/conversions.h
@@ -122,7 +122,7 @@ enum ConversionFlags {
 
 // Converts a string into a double value according to ECMA-262 9.3.1
 double StringToDouble(UnicodeCache* unicode_cache,
-                      Vector<const char> str,
+                      Vector<const uint8_t> str,
                       int flags,
                       double empty_string_val = 0);
 double StringToDouble(UnicodeCache* unicode_cache,
@@ -135,6 +135,16 @@ double StringToDouble(UnicodeCache* unicode_cache,
                       int flags,
                       double empty_string_val = 0);
 
+// Converts a string into an integer.
+double StringToInt(UnicodeCache* unicode_cache,
+                   Vector<const uint8_t> vector,
+                   int radix);
+
+
+double StringToInt(UnicodeCache* unicode_cache,
+                   Vector<const uc16> vector,
+                   int radix);
+
 const int kDoubleToCStringMinBufferSize = 100;
 
 // Converts a double to a string value according to ECMA-262 9.8.1.