[libcxx-commits] [libcxx] [libc++] Fix insertion and input-only range handling for `vector` (PR #116001)

[A. Jiang via libcxx-commits]

frederick-vs-ja wrote:

> > > Please split adding `std::move` from any algorithm changes.
> > 
> > 
> > I think I should split out the handling for input-only iterators, which is more than adding `std::move`.
> 
> Sure. Which way you split is up to you. I only care that it is split.

Split to #116157. I sadly realized why I placed the changes in one PR - `__insert_with_size` needs to be fixed in both directions, and the changes are far from orthogonal.

https://github.com/llvm/llvm-project/pull/116001