[php-src] Issue #7943: Nested Attributes values are not static through engine life

Issue: https://github.com/php/php-src/issues/7943 Comment Author: aurimasniekis I have checked ReflectionParameter and it behaves exactly the same, and I kinda understand the point of it. The outer problem of this was that with getArguments now returns object instance of that new Object() value as an argument, which makes trying to figure out how that new Object(.....) was constructed impossible, because if that Object has some kind of logic inside constructor you would not be able to recreate the same state of the instance. Even if by collecting properties and repopulating them back would not mean it would be correct because if the constructor has some kind of external logic for e.g. if today is Sunday value is such otherwise different.