UFile (package = )
    UClass (name = NameContainingFileKt)
        UField (name = xyzzy)
            UAnnotation (fqName = org.jetbrains.annotations.NotNull)
            ULiteralExpression (value = 0)
        UMethod (name = bar)
            UBlockExpression
        UMethod (name = getXyzzy)
    UClass (name = Foo)
        UMethod (name = Foo)
