Alexandre Ardhuin b007a81ad4
Reland "Nnbd widgets" (#65528)
* Reland "Nnbd widgets (#64672)"

This reverts commit 127e67902e8bbb0dcbfb3351b8fd00f7cbdf0178.

* remove non-nullable enforcement on AsyncSnapshot

* make data param non-nullable for AsyncSnapshot.withData

* make some Text params non-nullable
2020-09-15 16:42:00 +02:00
..