Hybrid tree-sitter + type-resolution call resolver for Rust, alongside the
Go/C/PHP/C#/Python/TypeScript/Java/Kotlin resolvers. Resolves method dispatch
on typed receivers, UFCS and associated-function calls, trait/impl methods,
generics, closures, the `?` operator, and iterator adapters; seeds the standard
library and well-known crates, parses Cargo.toml for dependency context, and
expands a curated set of derive/proc-macro generated methods.
Includes rust_cargo (manifest parsing), rust_proc_macros (derive expansion),
rust_rustdoc (doc extraction), a generated stdlib + crates seed, and a large
test suite (registered as suite rust_lsp). Wired into the per-file dispatch.
Field-access chains through Self-returning calls remain a documented coverage
gap. Full suite green (4666 tests).
