Added runtime TypeError for non-function, non-null __extends#37283

Merged

rbuckton merged 8 commits intomicrosoft:masterfrom

JoshuaKGoldberg:extends-constructor-typeerror

Dec 2, 2020

Commits on Mar 8, 2020

Added runtime TypeError for non-function, non-null __extends
JoshuaKGoldberg
committed

Commits on Mar 14, 2020

On second thought, removed the {}s
JoshuaKGoldberg
committed

Commits on Mar 17, 2020

Commits on Dec 1, 2020

Merge branch 'master'
Josh Goldberg
committed
...except for the small master merge slipups
Josh Goldberg
committed

Commits on Dec 2, 2020

Used String on base class per suggestion
Josh Goldberg
committed