syntax_data: {"ast_node_type":"other","tokens":[{"end":33,"kind":"keyword","start":0,"text":"impl<'tcx>"}]}
source_snippet: impl<'tcx> SelfArgVisitor<'tcx> {
context_after:     fn new(tcx: TyCtxt<'tcx>, elem: ProjectionElem<Local, Ty<'tcx>>) -> Self {