[libc-commits] [libc] [libc][NFC] Move functions from `FPBits` to `FPRep`, make `bits` member private (PR #79974)

[Guillaume Chatelet via libc-commits]

gchatelet wrote:

We can probably rewrite the code that directly manipulates the bit representation with higher level functions.

https://github.com/llvm/llvm-project/pull/79974