syntax_data: {"ast_node_type":"other","tokens":[{"end":37,"kind":"keyword","start":0,"text":"stmts:"}]}
source_snippet:     stmts: &mut Vec<Statement<'tcx>>,
context_before:     local_decls: &mut IndexVec<Local, LocalDecl<'tcx>>,
context_after:     source_info: SourceInfo,