[flang] [clang] [lldb] [compiler-rt] [llvm] [clang-tools-extra] [mlir] [libcxxabi] [libc] [libcxx] [lld] [libc++] Fix the behavior of throwing `operator new` under -fno-exceptions (PR #69498)

[Quentin Dian via cfe-commits]

DianQK wrote:

Thanks for the fix! I'll merge the blocked patches in a later two days.

https://github.com/llvm/llvm-project/pull/69498