* 3.3:
[Serializer] Fix extra attributes when no group specified
[Intl] Make intl-data tests pass and save language aliases again
[Console] Fix CommandTester::setInputs() docblock
[Serializer] readd default argument value
[VarDumper] fix trailling comma when dumping an exception
Remove useless docblocks
[FrameworkBundle] Fix docblocks
[PropertyInfo] Remove useless docblocks
The current context is not stored anymore. Instead, it is passed around the traverser
and the visitors. For this reason, validation can occur in multiple contexts at the
same time.