[1]:[UFile (package = )]
    [1]:[UClass (name = Foo)]
        [1]:[UIdentifier (Identifier (Foo))]
        [1]:[UExpressionList (class_body)]
            [2]:[UClass (name = Bar), UAnnotationMethod (name = Bar)]
                [1]:[UIdentifier (Identifier (Bar))]
                [1]:[UAnnotationMethod (name = Bar)]
                    [1]:[UDeclarationsExpression]
                        [3]:[UParameter (name = a), UField (name = a), UAnnotationMethod (name = getA)]
                            [1]:[UIdentifier (Identifier (a))]
                            [1]:[UTypeReferenceExpression (name = int)]
                                [1]:[USimpleNameReferenceExpression (identifier = Int)]
                                    [1]:[UIdentifier (Identifier (Int))]
                        [3]:[UParameter (name = b), UField (name = b), UAnnotationMethod (name = getB)]
                            [1]:[UIdentifier (Identifier (b))]
                            [1]:[UTypeReferenceExpression (name = int)]
                                [1]:[USimpleNameReferenceExpression (identifier = Int)]
                                    [1]:[UIdentifier (Identifier (Int))]
                [1]:[UExpressionList (class_body)]
                    [1]:[UAnnotationMethod (name = getAPlusB)]
                        [1]:[UIdentifier (Identifier (getAPlusB))]
                        [1]:[UDeclarationsExpression]
                        [1]:[UBinaryExpression (operator = +)]
                            [1]:[USimpleNameReferenceExpression (identifier = a)]
                                [1]:[UIdentifier (Identifier (a))]
                            [1]:[USimpleNameReferenceExpression (identifier = +)]
                                [1]:[UIdentifier (Identifier (+))]
                            [1]:[USimpleNameReferenceExpression (identifier = b)]
                                [1]:[UIdentifier (Identifier (b))]
                    [1]:[UClass (name = Baz)]
                        [1]:[UIdentifier (Identifier (Baz))]
                        [1]:[UExpressionList (class_body)]
                            [1]:[UAnnotationMethod (name = doNothing)]
                                [1]:[UIdentifier (Identifier (doNothing))]
                                [1]:[UDeclarationsExpression]
                                [1]:[USimpleNameReferenceExpression (identifier = Unit)]
                                    [1]:[UIdentifier (Identifier (Unit))]
