Organize Imports fails to remove inner class import for qualified reference

Consider the following:
```java
package foo;
public class Bar {
  public static class Baz {
  }
}
```

```groovy
import foo.Bar
import foo.Bar.Baz
Bar.Baz baz = null
```

Organize Imports (Ctrl+Shift+O) should remove "import foo.Bar.Baz" because the reference is qualified by the outer class.