syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"body.source.instance"}]}
source_snippet:     body.source.instance = coroutine_instance;
context_before:     // filename.
context_after:     dump_mir(tcx, false, "coroutine_drop", &0, &body, |_, _| Ok(()));