DDC-3120 -- Catch ReflectionException for internal classes in ClassMetad...

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I’m having an issue in relation to http://www.doctrine-project.org/jira/browse/DDC-3120 — When using ReflectionClass#newInstanceWithoutConstructor(); I’m getting a ReflectionException due to the class not being internal… it’s resolveable by adding a try/catch to use ReflectionClass#newInstance. BUT, I’d like to know if there is something else going on here… running PHP 5.5.13
This can't work for internal classes with constructor args, but I'll try finding alternate approaches.