Andrew BranchandGitHub c15f40abfa Fix discriminant property narrowing through optional chain with null (#42503) ...

* Fix discriminant property narrowing through optional chain with null

* Accept baselines

* Add tests from Anders

2021-01-29 12:03:42 -08:00

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baselines/reference

Fix discriminant property narrowing through optional chain with null (#42503)

2021-01-29 12:03:42 -08:00

cases

Fix discriminant property narrowing through optional chain with null (#42503)

2021-01-29 12:03:42 -08:00

lib

Preserve alias information where possible when looking up union and intersection base constraints (#42430)

2021-01-21 13:06:56 -08:00

projects

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