syntax_data: {"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"debug!(borrowed_locals"}]}
source_snippet:         debug!(borrowed_locals = ?ssa.borrowed_locals());
context_before:         let ssa = SsaLocals::new(tcx, body, typing_env);
context_after:         debug!(copy_classes = ?ssa.copy_classes());