I'm trying to enable a check for the following structure:
```
/** @hide */
public class Class1 {
/** @hide */
@SystemApi // Invalid because the class is hidden.
public void method1() { }
}
```
The internal R.java file violates this, which this change is going to fix.
Bug: 159162473
Test: build (treehugger)
Test: atest aapt2_tests
Merged-in: I613e8611ddaf5f8e4761d351d4cd0142d59c7cc9
Change-Id: I613e8611ddaf5f8e4761d351d4cd0142d59c7cc9
eab9e7f801