calltrace() includes path now, and no longer leaks.
calltrace() includes path now, and no longer leaks.

The leak was caused by not cleaning up from build_traceback properly.
I've created build_traceback_raw and now use lily_move_value_raw to
move the value over into the resulting register.

Raise now uses build_traceback_raw to avoid creating a lily_value
that it will simply free.

jesserayadkins/lily,jesserayadkins/lily,jesserayadkins/lily,FascinatedBox/lily,FascinatedBox/lily,FascinatedBox/lily,FascinatedBox/lily