syntax_data: {"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"for"}]}
source_snippet:     for block in body.basic_blocks_mut() {
context_before: pub(super) fn cleanup_async_drops<'tcx>(body: &mut Body<'tcx>) {
context_after:         if let TerminatorKind::Drop {