Enumeration Correction in C-Interface

Following issue #144.
@zdne that seems great, here is how I changed it shall I name blueprint name and description?(as they are not added in https://github.com/apiaryio/protagonist/blob/master/test/parser-test.coffee#L353)

    "# /resource\n"\
    "## GET\n"\
    "\n"\
    "+ request A\n"\
    "\n"\
    "        A\n"\
    "\n"\
    "+ response 200\n"\
    "\n"\
    "        200-A\n"\
    "\n"\
    "+ request B\n"\
    "\n"\
    "        B\n"\
    "\n"\
    "+ response 200\n"\
    "\n"\
    "        200-B\n"\
    "\n";