syntax_data: {"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"item_type.fn_sig(tcx).hash_stable(hcx,"}]}
source_snippet:                 item_type.fn_sig(tcx).hash_stable(hcx, &mut hasher);
context_before:             if let ty::FnDef(..) = item_type.kind() {
context_after:             }