Nightly build 2025.02.15

What's Changed

Toolchain and implementation changes 🛠️

• Reduce clangd-displayed errors for def files by @jonmeow in #4957
• Add poisoned names to the format by @bricknerb in #4961
• When diagnosing a duplicate name, point to the name instead of the instruction by @bricknerb in #4953
• Allow checking to continue after 'impl as' outside class by @danakj in #4937
• Refactor AddInst-family functions to their own file by @jonmeow in #4941
• Add a test for the case that extend poisons a class member by @bricknerb in #4960
• Add the used name to the NameUseBeforeDecl diagnostic by @bricknerb in #4901
• Diagnose cycles in impl lookup by @danakj in #4947
• Publish empty diagnostics on close by @jonmeow in #4954
• Share ReadFile in tests by @jonmeow in #4967
• Clean up Context API by @jonmeow in #4969

Infrastructure changes 🏗️

• Update rules_cc to 0.1.1 by @DavidLoftus in #4965
• Allow pre-commit to talk to googleapis by @jonmeow in #4966

Full Changelog: v0.0.0-0.nightly.2025.02.14...v0.0.0-0.nightly.2025.02.15