Increase ClangTidy code coverage by enabling features.

Change-Id: Ibb296dde9a412bf7f9de23f08cd4db700843729f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/307557
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
3 files changed