syntax_data: {"ast_node_type":"other","tokens":[{"end":33,"kind":"keyword","start":0,"text":"for"}]}
source_snippet:         for binding in bindings {
context_before:         let re_erased = self.tcx.lifetimes.re_erased;
context_after:             debug!("bind_matched_candidate_for_guard(binding={:?})", binding);