[compiler-rt] [win/asan] Improve SharedReAlloc with HEAP_REALLOC_IN_PLACE_ONLY. (PR #132558)

[Thurston Dang via llvm-commits]

thurstond wrote:

> @thurstond, sorry again for the delay and thanks for your patience. Do you still like this to be configurable via ASAN_OPTIONS? If yes, should the current behaviour stay the default (for now)? With some name like "realloc_in_place_always_same_address" or "realloc_in_place_allow_other_address"?

Since the new behavior is supposed to be more correct, we can try it without adding a configuration option.

If we discover that users in the wild need the old behavior for compatibility, we can revert and/or add a configuration option.

Is the patch ready to merge?

https://github.com/llvm/llvm-project/pull/132558