Modules
Incremental line-coverage gating for stale ExUnit runs.
Compiler tracer recording test-file → module reference edges for per-test-file coverage attribution.
Mix Tasks
Gates a native-cover reference snapshot when invoked directly. The
mix test.qlover runner also uses this task's snapshot and planning APIs to
gate its runtime-attributed line ownership.
Runs the test suite with runtime-attributed line coverage in one command