Allow incremental Clang Tidy run

I am starting clangd through a wrapper script that reverts --clang-tidy=0 to true and running clang-tidy out of expensive checks without delaying clangd's own basic output, and it takes far less time to see the (initial) clang-tidy output than the full clang-tidy run.

Full live clang-tidy of "Analyzers/Clang Tools/Analyze Open Files" is also enabled and brings complete clang-tidy output a little later. Cool.

The problem is I have doubles. Can you filter doubles and drop clangd's clang-tidy output when the standalone clang-tidy output is ready?