Serializes scoverage data.
https://github.com/scoverage/scalac-scoverage-plugin/blob/main/scalac-scoverage-plugin/src/main/scala/scoverage/Serializer.scala
Write out coverage data to the given data directory, using the default coverage filename
Write out coverage data to a file.
Write out coverage data (info about each statement that can be covered) to a writer.