Fix false positive with parenthetical expressions (#15)

fix: false-positive with int pointer dereference (#13)

* fix: false-positive with int pointer dereference

* chore: use tagged version of x/tools

Fix false positive with selector expressions (#10)

Fix false positive with struct fields (#8)

Fix false positive on const multiplied by duration (#5)

* Fix const by duration false positive

* Tidy deps

Co-authored-by: Charith Ellawala <charith.ellawala@gmail.com>

Fix issues #1 and #2