Port React Compiler to Rust

Meta is sharing an experimental work-in-progress port of React Compiler from TypeScript to Rust, which passes all 1,725 test fixtures and shows significant performance improvements—3x faster as a Babel plugin with the actual transformation logic running approximately 10x faster. The Rust version maintains the same architecture as the original TypeScript implementation, using a control-flow graph and single-static assignment intermediate representation, and includes integration examples for Babel, OXC, and SWC tools. The project was developed with AI assistance under human guidance, prioritizing code quality and architectural integrity, with early benchmarks suggesting further performance gains when used with native integrations.