Get the configured dir in which the measurement files should be written (see Invoker.
Get the configured dir in which the measurement files should be written (see Invoker.invoked)
This path will be hardcoded into the instrumented class files.
We create the dir now (rather than at client runtime), for efficiency.
The 'start' of the position, if it is available, else -1 We cannot use 'isDefined' to test whether pos.
The 'start' of the position, if it is available, else -1
We cannot use 'isDefined' to test whether pos.start will work, as some
classes (e.g. scala.reflect.internal.util.OffsetPosition have
isDefined true, but throw on start