[libcxx-commits] [libcxx] Avoid using `__shifted` as an identifier (PR #82248)

[Louis Dionne via libcxx-commits]

ldionne wrote:

It seems to me like this compiler extension could be a bit smarter and realize that `__shifted` without any parenthesis can't be their keyword. I don't think it makes sense to try to fix this in libc++. Generally speaking, it makes sense to try to fix these kinds of issues when they are widespread (e.g. incompatibility with a well known Windows header) and when fixing them otherwise is very difficult or impossible. However, we don't want to create a precedent for working around the use of reserved identifiers in arbitrary projects (Clang forks or other), since that clearly doesn't work in the long term.

https://github.com/llvm/llvm-project/pull/82248