UFile (package = )
    UClass (name = I)
        UMethod (name = foo)
    UClass (name = Base)
        UMethod (name = Base)
        UMethod (name = foo)
            UBlockExpression
                UReturnExpression
                    ULiteralExpression (value = 42)
    UClass (name = Foo)
        UField (name = p)
            ULiteralExpression (value = "42")
        UMethod (name = Foo)
        UMethod (name = getP)
        UMethod (name = bar)
            UParameter (name = other)
            UBlockExpression
                [!] UnknownKotlinExpression (CALL_EXPRESSION)
        UMethod (name = baz)
            UParameter (name = other)
            UBlockExpression
                [!] UnknownKotlinExpression (CALL_EXPRESSION)
