Andrew Branch 89c173fddc Narrow via discriminant property through optional chain (#42450) ...

* Naive attempt at narrowing via discriminant property through optional chain

* Clean up test

2021-01-25 09:29:51 -08:00

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baselines/reference

Narrow via discriminant property through optional chain (#42450)

2021-01-25 09:29:51 -08:00

cases

Narrow via discriminant property through optional chain (#42450)

2021-01-25 09:29:51 -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

Reverts #39277 removing bundledPackageName (#41499)

2021-01-08 10:55:34 +00:00