syntax_data: {"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"ExprKind::ThreadLocalRef(def_id)"}]}
source_snippet:                 ExprKind::ThreadLocalRef(def_id) => {
context_before:                 }
context_after:                     assert!(this.tcx.is_thread_local_static(def_id));