syntax_data: {"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"body_def.generics_of(tcx.generics_of(coroutine_def_id).clone());"}]}
source_snippet:     body_def.generics_of(tcx.generics_of(coroutine_def_id).clone());
context_before:     body_def.explicit_predicates_of(tcx.explicit_predicates_of(coroutine_def_id));
context_after:     body_def.param_env(tcx.param_env(coroutine_def_id));