Arthur O'Dwyer 459b4b725f [libc++] [API BREAK] Change fs::path::iterator::iterator_category to input_iterator_tag.
This essentially reverts e02ed1c255d71 and puts in a new fix, which makes `path::iterator`
a true C++20 `bidirectional_iterator`, but downgrades it to an `input_iterator` in C++17.

Fixes #37852.

Differential Revision: https://reviews.llvm.org/D116489
2022-01-17 16:33:23 -05:00
..