syntax_data: {"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":"impl<'tcx>"}]}
source_snippet: impl<'tcx> FallibleTypeFolder<TyCtxt<'tcx>> for TryNormalizeAfterErasingRegionsFolder<'tcx> {
context_after:     type Error = NormalizationError<'tcx>;