Nathan Shively-Sanders aa67b16e99
Add undefined to Symbol.declarations' type (#42975)
* Add undefined to Symbol.declarations' type

Symbol.declarations now has type `Declaration[] | undefined`.

I made a mistake somewhere in the checker related to JS checking, so
there are quite a few test failures right now.

* undo clever change to getDeclaringConstructor

* Address PR comments

1. More early-returns.
2. More line breaks.
2021-03-01 14:32:28 -08:00
..