[llvm-branch-commits] [ASan] Make most tests run under internal shell on Darwin (PR #168545)

[Aiden Grossman via llvm-branch-commits]

https://github.com/boomanaiden154 created https://github.com/llvm/llvm-project/pull/168545

This patch fixes most of the ASan tests that were failing on Darwin when
running under the internal shell. There are still a couple left that
are more interesting cases that I'll do in a follow up patch. The
tests that still need to be done:
```
TestCases/Darwin/duplicate_os_log_reports.cpp
TestCases/Darwin/dyld_insert_libraries_reexec.cpp
TestCases/Darwin/interface_symbols_darwin.cpp
```