[PATCH 0/2] MR7251: TLS slots alignment.

[eric pouech (＠epo)]

This MR enforces alignment of TLS slots as described in PE file.

I'm not 100% happy with the deallocation scheme, as it could be slow.
If someone has a better idea, be welcome!
Didn't open the option to introduce helpers in heap.c (but maybe that's the way to go).