syntax_data: {"ast_node_type":"variable","tokens":[{"end":67,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let stable_crate_id = tcx.stable_crate_id(LOCAL_CRATE);
context_before:         if tcx.proc_macro_decls_static(()) == Some(def_id) {
context_after:             return tcx.sess.generate_proc_macro_decls_symbol(stable_crate_id);