Nightly build 2024.10.19

What's Changed

Toolchain and implementation changes 🛠️

• Clean up format_provider uses by @jonmeow in #4417
• Remove mistaken asserts and add regression test by @jonmeow in #4424
• Add s plural format to IntAsSelect by @jonmeow in #4423
• Remove a couple std::string uses in diagnostics. by @jonmeow in #4421
• More focused diagnostic notes for parameters by @geoffromer in #4420
• Refactor modifier formatting to remove string passing. by @jonmeow in #4418
• Don't deduce values for explicitly-specified generic bindings. by @zygoloid in #4415
• Update for llvm::formatv changes by @jonmeow in #4427
• Support printing the diagnostic kind for verification. by @jonmeow in #4425

Full Changelog: v0.0.0-0.nightly.2024.10.17...v0.0.0-0.nightly.2024.10.19