Fixed file position implementation. It should return false if other is not actually of filePosGTID type.
Fixed file position implementation. It should return false if other is not actually of filePosGTID type.

Signed-off-by: Peter Farr <64ca93f83bb29b51d8cbd6f3e6a8daff2e08d3ec@PrismaPhonic.com>

tinyspeck/vitess,vitessio/vitess,vitessio/vitess,tinyspeck/vitess,mahak/vitess,mahak/vitess,vitessio/vitess,tinyspeck/vitess,vitessio/vitess,mahak/vitess,tinyspeck/vitess,vitessio/vitess,mahak/vitess,tinyspeck/vitess,mahak/vitess,mahak/vitess,tinyspeck/vitess,vitessio/vitess,mahak/vitess,vitessio/vitess,mahak/vitess,vitessio/vitess,tinyspeck/vitess