llvm-project

a0e84627 - [compiler-rt][sanitizer_common] Improve handling of env vars for iOS simulator tests (#146721)

[compiler-rt][sanitizer_common] Improve handling of env vars for iOS simulator tests (#146721) * Fix splitting of arguments such as `LSAN_OPTIONS=suppressions=lsan.supp` * Prevent environment variables set in parent process being overwritten * Replace hard-coded `env` with `%env` to allow overriding depending on target * Replace deprecated `pipes` usage with `shlex` * Run formatter over `iossim_env.py`