Instead of calling Subject.actual(), store the actual value in a field, and read that.
actual() is being removed.
More information:
go/truth-subject-lsc
Tested:
TAP --sample ran all affected tests and none failed
http://test/OCL:246937557:BASE:246916962:1557195862537:ce44ebfe
PiperOrigin-RevId: 247097545
Change-Id: I9e34844e74a52b275f5078b84c64cdc929a8ac54