Fixed @tupleReturn on interface function properties#582

Merged

Perryvw merged 3 commits intomasterfrom

tuplereturn-interfaces-fix

May 18, 2019

Commits on May 15, 2019

Fixed @tupleReturn on interface function properties
tomblind
committed

Commits on May 16, 2019

unpack checks in tuple tests, destructuring array literals doesn't pack+unpack anymore, and addressed feedback
tomblind
committed
revised destructuring array literals so right side is always evaluated
tomblind
committed