The file API code used unsigned long to hold the major version in most
places, but not all. Some places used unsigned int, and an important one
of those is the cmFileApi::BuildVersion() function. As a result, it has never
been safe for a large value not representable by an unsigned int to be
used in these variables.
Convert all of the file API version number variables and function arguments
to use unsigned int consistently. This avoids any size mismatch warnings
when passing values around. They also don't need to be unsigned long,
as we never expect version numbers to be anything even close to what
an unsigned int cannot represent.
Run the `clang-format.bash` script to update all our C and C++ code to a
new style defined by `.clang-format`, now with "east const" enforcement.
Use `clang-format` version 18.
* If you reached this commit for a line in `git blame`, re-run the blame
operation starting at the parent of this commit to see older history
for the content.
* See the parent commit for instructions to rebase a change across this
style transition commit.
Issue: #26123
