syntax_data: {"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"dtorck_constraint_for_ty_inner(tcx,"}]}
source_snippet:         dtorck_constraint_for_ty_inner(tcx, typing_env, span, 0, fty, &mut result);
context_before:         let fty = tcx.type_of(field.did).instantiate_identity();
context_after:     }