Anders Hejlsberg 4026c6fd80
Properly handle null and undefined in getCommonSupertype (#50021)
* Properly handle null and undefined in getCommonSupertype

* Add tests

* Add more tests
2022-07-24 08:09:14 -07:00
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2022-03-03 09:10:02 -08:00
2022-05-09 10:41:02 -07:00