syntax_data: {"ast_node_type":"variable","tokens":[{"end":67,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let hir_context = self.tcx.local_def_id_to_hir_id(def);
context_before:             };
context_after:             let safety_context = mem::replace(&mut self.safety_context, SafetyContext::Safe);