[clang] [clang-tools-extra] [libcxx] Reland "[clang] Enable sized deallocation by default in C++14 onwards" (PR #90373)

[Vitaly Buka via cfe-commits]

vitalybuka wrote:

> > > Based on my rough understanding, this is expected?
> > 
> > 
> > What do you mean?
> > Isn't this test needs to be updated or disabled?
> 
> I think this ASAN failure is not caused by this PR because these memorys are allocated/deallocated by

100% sure by this PR
https://lab.llvm.org/buildbot/#/builders/168/builds/20461 only two patches on the blame list and the second one is unrelated for sure.

https://github.com/llvm/llvm-project/pull/90373