LT_IF
lt = LT_IF;
lt = LT_IF;
return (constexpr ? LT_IF : ret == LT_ERROR ? LT_IF : ret);
retval = LT_IF;
retval = LT_IF;
if(at == LT_IF || bt == LT_IF) return (LT_IF);
#define linetype_if2elif(lt) ((Linetype)(lt - LT_IF + LT_ELIF))
if (lt != LT_IF) {