llvm-project

6f6af499 - Clarify `lit`'s definition of failure and conditions when it exits with exit code 1 (#136190)

Clarify `lit`'s definition of failure and conditions when it exits with exit code 1 (#136190) Documentation of when `lit` exits with code 1 is out of date. It is no longer just "FAIL or XPASS", there are more failure types: https://github.com/llvm/llvm-project/blob/b30100b87f24847afd6407b4939a184ebcf16ef9/llvm/utils/lit/lit/Test.py#L51-L55 Exit code can also be affected by `--ignore-fail` option: https://github.com/llvm/llvm-project/blob/b30100b87f24847afd6407b4939a184ebcf16ef9/llvm/utils/lit/lit/main.py#L154-L162 This PR extracts a clear definition of "failure" from the description of `--report-failures-only` option: https://github.com/llvm/llvm-project/blob/b30100b87f24847afd6407b4939a184ebcf16ef9/llvm/docs/CommandGuide/lit.rst?plain=1#L194-L196 ...puts it into "Test Status Results" section and references it when describing exit codes and `--ignore-fail` option.