syntax_data: {"ast_node_type":"variable","tokens":[{"end":64,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:             if let TerminatorKind::Call { ref mut target, .. } =
context_before:         if !is_dropline_bb {
context_after:                 body[dropline_transition_bb.unwrap()].terminator_mut().kind