> compile
$ copy-file changes/A1.scala a/A.scala
$ copy-file changes/B1.scala b/B.scala
# This used to fail with "Tasty UUID (...) file did not correspond the tasty UUID (...) declared in the classfile"
# because we were somehow reading the .tasty file from the previous compilation run, even though it does not exist
# on disk anymore (#7852)
> compile
