`to_bits` and `from_bits` are builtin methods on float types. Rename `repr` to `to_bits` and `from_repr` to `from_bits` so this is consistent with usage that doesn't go through the trait.
`to_bits` and `from_bits` are builtin methods on float types. Rename `repr` to `to_bits` and `from_repr` to `from_bits` so this is consistent with usage that doesn't go through the trait.