[compiler-rt] [compiler-rt][asan][tests] Stabilize wchar tests on Darwin/Android (PR #161624)

[Yixuan Cao via llvm-commits]

Cao-Wuhui wrote:

> With the revert of this fix-forward landed, the issues on the original patch (Android, Chromium etc.) are going to break those bots again. Moreover, at this point, the Darwin bots would been broken for 5+ days.
> 
> #162021 will revert the base patch.

Thanks, understood. I’ll prepare a single reland that brings back the `wcscpy/wcsncpy` interceptors (from #160493) together with the stabilized tests (from #161624). The reland will keep Android’s `%env_asan_opts=log_to_stderr=1`, use a DAG group for `Good so far.` and the ASan header, and keep strict order for the subsequent lines, per the revert→reland policy.

https://github.com/llvm/llvm-project/pull/161624