syntax_data: {"ast_node_type":"other","tokens":[{"end":9,"kind":"keyword","start":0,"text":"{"}]}
source_snippet:         {
context_before:             fast_reject::simplify_type(self, self_ty, TreatParams::InstantiateWithInfer)
context_after:             if let Some(impls) = impls.non_blanket_impls.get(&simp) {