syntax_data: {"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"//!"}]}
source_snippet: //! This crate mostly exists to make rustc smaller, so we might put
context_before: //! is really just odds-and-ends relating to code gen and linking.
context_after: //! more 'stuff' here in the future. It does not have a dependency on