syntax_data: {"ast_node_type":"variable","tokens":[{"end":80,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let inner_thir = if self.tcx.sess.opts.unstable_opts.no_steal_thir {
context_before:             self.tcx.ensure_done().mir_built(def);
context_after:                 &inner_thir.borrow()