* run clang-tidy with readability-braces-around-statements
clang-format the results
clean up all the parts that clang-tidy-8 broke
* fix problem on windows
* first round of cleanups based on PVS-studio suggestions
* a couple more
* a few more cleanups
* another round of cleanups
* undo one of those cleanups
we want the integer rounding behavior here
* add a comment to make that clear
* Fix for filter catalog PRECONDITION redundancy