{"ast_node_type":"variable","tokens":[{"end":90,"kind":"keyword","start":0,"text":"let"}]}
        let call = self.call(llty, fn_attrs, Some(fn_abi), llfn, args, funclet, instance);
    ) {
        llvm::LLVMRustSetTailCallKind(call, llvm::TailCallKind::MustTail);