syntax_data: {"ast_node_type":"other","tokens":[{"end":24,"kind":"keyword","start":0,"text":"assert!("}]}
source_snippet:                 assert!(
context_before:             let peel_deref = if child_capture.is_by_ref() {
context_after:                     parent_capture.is_by_ref() || coroutine_kind != ty::ClosureKind::FnOnce,