Generator Functions aren't yielding output when wrapped

[juniorbird]

Generator functions when minty.wrapped yield undefined

Example:

const minty = require('minty');

function* fooMaker(bar) {
  yield bar * 2;
  yield* fooMaker(bar);
}

var one = fooMaker(2);
console.log(one.next().value);
console.log(one.next().value);
console.log(one.next().value);

var two = minty.wrap(fooMaker);
console.log(two(2));

/* returns 
{}
4
4
4
undefined // should be 4
*/

[tzilist]

This issue has been fixed, all wrapped functions should now properly return the correct values.