syntax_data: {"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"ty::Pat(ty,"}]}
source_snippet:         ty::Pat(ty, ..) => simplify_type(cx, ty, treat_params),
context_before:         ty::Slice(..) => Some(SimplifiedType::Slice),
context_after:         ty::RawPtr(_, mutbl) => Some(SimplifiedType::Ptr(mutbl)),