This code gets compiled to the following JS:
```javascript
      var await = $uZ(await$2);
        var $$x3;
        if (await) {
          var this$8 = this$2$1.Lzio_test_environment_package$TestClock$Test__f_warningStart;
          var that = new $c_sjsr_AnonFunction0(((this$7, promise$1$1) => (() => promise$1$1.await__Lzio_ZIO()))(this$2$1, promise$3));
          $$x3 = $f_Lzio_ZIO__$times$greater__F0__Lzio_ZIO(this$8, that)
        } else {
          $$x3 = promise$3.succeed__O__Lzio_ZIO((void 0))
        };
```
Unfortunately, this throws an error in Firefox (and potentially other browsers):
```
Uncaught SyntaxError: await is a reserved identifier
```
I've searched through the generated JS code, and this seems to be the only occurrence of `await` without any prefix or suffix, so hopefully this change should fix the problem.