As a developer of Qt, I'd like to be a able to use negation, grouping, conjunction and dijunction to select prechecks

The new Precheck selection dialog in Gerrit allows me to select a subset of OS/OSVersions to run checks on, which is great for platform-specific code, and QTQAINFRA-5079 implements the same for compiler- or CPU-arch-specific code.

In addition, it would be nice to express negation and other logical operations in the query line, maybe along the lines of what Gerrit queries allow (to re-use a parser, if it's available).

Examples of where this would be useful:

• -linux - I develop on Linux
• -mac - when the CI is loaded again and the macs are bandwidth-constrained
• linux AND Clang - I don't have Clang locally
• arm -android
• ...