[kairos] specify variance for TStateSelector

This allows a more-general TStateSelector to be used in places
specifying a more-specific one.

Flag: EXEMPT unused
Test: atest kairos-tests
Change-Id: I56464da36433a315627e7ee8152bc1d7b49d7322

parent 1ea4433f

packages/SystemUI/utils/kairos/src/com/android/systemui/kairos/TState.kt

+1 −1

Original line number	Diff line number	Diff line
		@@ -418,7 +418,7 @@ fun <A> TState<A>.selector(numDistinctValues: Int? = null): TStateSelector<A> =
		* @see selector
		*/
		@ExperimentalFrpApi
		class TStateSelector<A>
		class TStateSelector<in A>
		internal constructor(
		private val upstream: TState<A>,
		private val groupedChanges: GroupedTFlow<A, Boolean>,