[BUGFIX] Builder generates wrong class names for ViewHelperNode

This should prevent builder from using newer class names.
Otherwise it would use always newer class Names for 6.x

For running tests on a 4.5 environment, we _need_ underscored naming.
Merge branch 'builderAlwaysNegatesOnClassNamesIn45' of github.com:cedricziel/builder into builderAlwaysNegatesOnClassNamesIn45