BloombergLP::bslalg::ConstructorProxy_PolymorphicAllocator::operator BloombergLP::bslmf::NestedTraitDeclaration<ConstructorProxy_PolymorphicAllocator, UsesBslmaAllocator, false>

Declare that ConstructorProxy_PolymorphicAllocator does not use a bslma allocator when false is specified.