[clang] [clang] Implement address sanitizer on AIX (PR #129925)

[Jake Egan via cfe-commits]

================
@@ -256,6 +256,8 @@ def err_drv_malformed_sanitizer_metadata_ignorelist : Error<
   "malformed sanitizer metadata ignorelist: '%0'">;
 def err_drv_unsupported_static_sanitizer_darwin : Error<
----------------
jakeegan wrote:

But AIX doesn't support shared, rather than static. 

https://github.com/llvm/llvm-project/pull/129925