syntax_data: {"ast_node_type":"other","tokens":[{"end":3,"kind":"keyword","start":0,"text":"//!"}]}
source_snippet: //!
context_before: //! use rustc_const_eval::dataflow::Analysis; // Makes `iterate_to_fixpoint` available.
context_after: //! fn do_my_analysis(tcx: TyCtxt<'tcx>, body: &mir::Body<'tcx>) {