update constraints for RandomVariable validation

...s.descartes.dml.mm.applicationlevel/model/functions.ecore

...tes/dml/mm/applicationlevel/functions/BoolSampleList.java

...tes/dml/mm/applicationlevel/functions/BooleanLiteral.java

...descartes/dml/mm/applicationlevel/functions/BoxedPDF.java

...rtes/dml/mm/applicationlevel/functions/DoubleLiteral.java

...s/dml/mm/applicationlevel/functions/DoubleSampleList.java

...tes/dml/mm/applicationlevel/functions/EnumSampleList.java

...scartes/dml/mm/applicationlevel/functions/IntLiteral.java

...rtes/dml/mm/applicationlevel/functions/IntSampleList.java

...m/applicationlevel/functions/ProbabilityMassFunction.java

...tes/dml/mm/applicationlevel/functions/RandomVariable.java

...applicationlevel/functions/impl/FunctionsPackageImpl.java

...applicationlevel/functions/util/RandomVariableHelper.java

...evel/parameterdependencies/InfluencableModelVariable.java

...l/parameterdependencies/ParameterdependenciesFactory.java

...meterdependencies/impl/InfluencableModelVariableImpl.java

...erdependencies/impl/ParameterdependenciesFactoryImpl.java

...erdependencies/impl/ParameterdependenciesPackageImpl.java

...ovider/DependencyPropagationRelationshipItemProvider.java

...ncies/provider/InfluencableModelVariableItemProvider.java