syntax_data: {"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"instance_ty"}]}
source_snippet:                 instance_ty = tcx.type_of(ty_def_id).instantiate_identity();
context_before:             | DefPathData::SyntheticCoroutineBody => {
context_after:                 debug!(?instance_ty);