perf: skip the `simp` preprocessor for `lia` div/mod facts

This PR makes `lia` add the linear facts it derives for `a / k` and `a % k` without running them through the `simp`-based preprocessor. These facts are linear combinations that `lia` normalizes itself.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
1 file changed