This speeds up the script from about 120ms down to about 20ms for
reasonably common changesets.
100ms may not feel like much, but it adds up quickly, especially since
we run a dozen scripts during pre-commit.
This moves all code comprehension-related code to a new library,
LibCodeComprehension.
This also moves some types related to code comprehension tasks (such as
autocomplete, find declaration) out of LibGUI and into
LibCodeComprehension.
Similarly to the LibCpp parser regression tests, these tests run the
preprocessor on the .cpp test files under
Userland/LibCpp/Tests/preprocessor, and compare the output with existing
.txt ground truth files.
This commit removes the only 3rd party library (and its usages)
in serenity: puff, which is used for deflate decompression. and
replaces it with the existing original serenity implementation
in LibCompress. :^)
The bash version takes around 15 seconds to run; that is way too slow.
This python3 version should take less than one second to run. :^)
Also, the script will now also check .py files and .txt CMake files.
