Nightly build 2025.03.06

What's Changed

Proposals accepted and merged 📜

• Destructor syntax by @jonmeow in #5017

Toolchain and implementation changes 🛠️

• Add remaining clang symlinks and test them by @chandlerc in #5050
• Function decl lowering for incomplete parameter/return types (#5038) by @dwblaikie in #5066
• Fix crash when exporting a poisoned name by @jonmeow in #5074
• Support impl lookup for multiple interfaces in a facet type by @danakj in #5047
• Fix the error message in fail_todo_convert_facet_value_to_narrowed_facet_type.carbon by @danakj in #5077

Documentation changes 📝

• Update pip3 mentions to pipx by @jonmeow in #5065

Full Changelog: v0.0.0-0.nightly.2025.03.05...v0.0.0-0.nightly.2025.03.06