Extended Description

As described in utils/lit/README.txt, lit has its own test suite, which can be run like so:

# From within your LLVM source directory.
utils/lit/lit.py \
    --path /path/to/your/llvm/build/bin \
    utils/lit/tests

However, when this command is run on a Windows host, the test utils/lit/tests/shtest-format.py fails.