IS_SYMBOL        1000 src/hydrogen-instructions.cc   if (check_ == IS_SYMBOL &&
IS_SYMBOL        1033 src/hydrogen-instructions.cc     case IS_SYMBOL:
IS_SYMBOL        1064 src/hydrogen-instructions.cc     case IS_SYMBOL: return "symbol";
IS_SYMBOL        2185 src/hydrogen-instructions.h     return new(zone) HCheckInstanceType(value, IS_SYMBOL);