syntax_data: {"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":"impl<'tcx>"}]}
source_snippet: impl<'tcx> TypeFoldable<TyCtxt<'tcx>> for ty::Clause<'tcx> {
context_before: // FIXME(clause): This is wonky
context_after:     fn try_fold_with<F: FallibleTypeFolder<TyCtxt<'tcx>>>(