a40a77bf

By: Tom Sydney Kerckhove <syd@cs-syd.eu>

Split coverage-list modes into their own modules; bump sydtest to 0.25.0.0

Each coverage-related child-mode entry point now lives in its own module
under Test.Syd.MutationMode, matching runSingleCoverageMode / runSingleMutationMode:

- runCoverageListMode          -> Test.Syd.MutationMode.CoverageList
- runCoverageListLocationsMode -> Test.Syd.MutationMode.CoverageListLocations

Test.Syd just dispatches to them. Bump sydtest 0.24.0.0 -> 0.25.0.0 and note
the new --mutation-coverage-list-locations mode and
flattenTestForestWithIdsAndCallStacks in the changelog.