Nightly build 2025.02.20

What's Changed

Toolchain and implementation changes 🛠️

• When diagnosing a duplicated name, add the name to the diagnosis by @bricknerb in #4902
• Make choice work for alternatives without parameters by @danakj in #4815
• Add enumerate() for ValueStore and ImplStore by @danakj in #4975
• Remove Context::DumpFormattedFile by @jonmeow in #4978
• Improve decl_name_stack comments by @jonmeow in #4977
• Avoid diagnosing conversion errors inside deduction of impl arguments by @danakj in #4976
• First iteration of completing and resolving facet types by @josh11b in #4920
• Remove FileTestBase::ValidateRun by @jonmeow in #4979
• Fix clang runner to avoid leaking memory by @chandlerc in #4972

Documentation changes 📝

• Document grammar of field and associated constant decls by @geoffromer in #4980

Full Changelog: v0.0.0-0.nightly.2025.02.19...v0.0.0-0.nightly.2025.02.20