syntax_data: {"ast_node_type":"other","tokens":[{"end":88,"kind":"keyword","start":0,"text":"infcx.tcx.predicates_of(parent_impl_def_id).instantiate(infcx.tcx,"}]}
source_snippet:         infcx.tcx.predicates_of(parent_impl_def_id).instantiate(infcx.tcx, parent_args),
context_before:         param_env,
context_after:     );