Rename LookupSymbol calls to use Utf8 or OneByte in names.

src/json-parser.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 667 matching lines @@
       }
     } else {
       return SlowScanJsonString<SeqOneByteString, char>(source_,
                                                       beg_pos,
                                                       position_);
     }
   } while (c0_ != '"');
   int length = position_ - beg_pos;
   Handle<String> result;
   if (seq_ascii && is_symbol) {
-    result = factory()->LookupAsciiSymbol(seq_source_,
-                                          beg_pos,
-                                          length);
+    result = factory()->LookupOneByteSymbol(seq_source_, beg_pos, length);
   } else {
     result = factory()->NewRawOneByteString(length, pretenure_);
     char* dest = SeqOneByteString::cast(*result)->GetChars();
     String::WriteToFlat(*source_, dest, beg_pos, position_);
   }
   ASSERT_EQ('"', c0_);
   // Advance past the last '"'.
   AdvanceSkipWhitespace();
   return result;
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_JSON_PARSER_H_