function (it) {
  if (FREEZE && meta.NEED && isExtensible(it) && !_has(it, META)) setMeta(it);
  return it;
}
function (it) {
  if (FREEZE && meta.NEED && isExtensible(it) && !_has(it, META)) setMeta(it);
  return it;
}
function ( it ) { if ( FREEZE && meta . NEED && isExtensible ( it ) && ! _has ( it , META ) ) setMeta ( it ) ; return it ; }
add metadata on freeze-family methods calling
add metadata on freeze - family methods calling