generic constraint not working

[fernandezpablo85]

This compiles cleanly:

function foo <T extends { someNumber: number }> (thingWithId: T): T {
    return thingWithId;
}

[1,2].map(foo);

and obviously, numbers don't have a someNumber numeric property.

[RyanCavanaugh]

See #3410 as mentioned in the Stack Overflow answer

[mhegazy]

tracked by #5616