[clang] [compiler-rt] [UBSan] Fix incorrect alignment reported when global new returns an o… (PR #152532)

[Nico Weber via llvm-commits]

nico wrote:

This got reverted in #166197. (The revert message doesn't say why, but we've seen the new test failing e.g. on macOS, so maybe due to that?)

https://github.com/llvm/llvm-project/pull/152532