"missing require" warning when calling methods of values of object literals

When running -
`java -jar closure-compiler-v20180610.jar --js trial.js --language_in ECMASCRIPT_NEXT -O ADVANCED_OPTIMIZATIONS --jscomp_warning '*' --warning_level VERBOSE --js_output_file trial.min.js`

Where trial.js is -
```js
const foo = {baz: "baz"};

/** @return {boolean} */
function call()
{
return foo.baz.includes("a");
}
```

I wrongly get -
```
trial.js:6: WARNING - missing require: 'foo.baz'
return foo.baz.includes("a");
^^^^^^^^^^^^^^^^^^^^^

0 error(s), 1 warning(s), 91.9% typed
```