syntax_data: {"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"assert_eq!(field_remapping.len(),"}]}
source_snippet:         assert_eq!(field_remapping.len(), tcx.closure_captures(parent_def_id).len());
context_before:     if coroutine_kind == ty::ClosureKind::FnOnce {
context_after:         // The by-move body is just the body :)