Merge "Opt-in -Xexpect-actual-classes for kotlinx_coroutines" into main am: 822878f6a6

Original change: https://android-review.googlesource.com/c/platform/external/kotlinx.coroutines/+/3324691

Change-Id: I8439da96a8741476fdb4657bc97fa25832619855
Signed-off-by: Automerger Merge Worker <[email protected]>