{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"llvm::LLVMRustSetTailCallKind(call,"}]}
        llvm::LLVMRustSetTailCallKind(call, llvm::TailCallKind::MustTail);
        let call = self.call(llty, fn_attrs, Some(fn_abi), llfn, args, funclet, instance);