class Racc::Parser

It must 'yield' the token, which format is [TOKEN-SYMBOL, VALUE].
RECEIVER#METHOD_ID is a method to get next token.

If you use this method, you must implement RECEIVER#METHOD_ID method.
Another entry point for the parser.

def yyparse(recv, mid)
  __send__(Racc_YY_Parse_Method, recv, mid, _racc_setup(), false)
end