[libcxx-commits] [libcxx] [libc++][modules] Rewrite the modulemap to have fewer top-level modules (PR #110501)

[A. Jiang via libcxx-commits]

frederick-vs-ja wrote:

@ldionne The current organization seems problematic for implementing P1317R2, which brought several tuple-like mechanisms into `<type_traits>`. See #151480. Should we (largely) expand the `std_core` module, or create some non-core modules for `<type_traits>`?
(Also, it's quite confusing that `type_traits` is in core but `concepts` is not.)

https://github.com/llvm/llvm-project/pull/110501