Corrected type of 'swap' in torch.nn.TripletMarginLoss (#18115)
Summary:
Fix #16428 by correcting type of 'swap' from `float` to `bool`
Pull Request resolved: https://github.com/pytorch/pytorch/pull/18115
Differential Revision: D14516615
Pulled By: ezyang
fbshipit-source-id: c61a45d533f3a443edf3c31c1ef3d9742bf46d2b
