llvm-project

81935c5e - [compiler-rt] [MSVC] Detect MSVC as a compiler-id for lit. (#108255)

[compiler-rt] [MSVC] Detect MSVC as a compiler-id for lit. (#108255) This is only for "real" msvc and is to support running sanitizer tests with "real" MSVC. Most compiler-rt tests do not yet pass with msvc, which will be addressed in future PRs for asan, sanitizer_common, and the fuzzer. We've been using these changes to lit to run CI for the version of address sanitizer that ships with MSVC, by upstreaming them we can avoid being broken by future lit changes and allow contributors (importantly _us_) to run the MSVC tests on changes developed in the open.