> compile
> recordPreviousIterations
# Force recompilation of A because B.isOdd, called by A.isEven,
# has changed, this should force C to recompile
$ copy-file changes/B1.scala B.scala
> compile
# 1 to recompile B, then 1 more to recompile:
# - A due to B.isOdd change
# - B due to A.isEven change
# - C due to A.isEven change
> checkIterations 2
