Support for bound actions and functions on non-entity types

[Xriuk]

Per specs it seems that bound functions (and actions?) can be used for complex and primitive types, and their collections.

boundOperation = "/" ( boundActionCall
                     / boundEntityColFunctionCall    [ collectionNavigation ] 
                     / boundEntityFunctionCall       [ singleNavigation ] 
                     / boundComplexColFunctionCall   [ complexColPath ] 
                     / boundComplexFunctionCall      [ complexPath ]
                     / boundPrimitiveColFunctionCall [ primitiveColPath ] 
                     / boundPrimitiveFunctionCall    [ primitivePath ] 
                     / boundFunctionCallNoParens     [ querySegment ]
                     )

But the model builder seemingly supports only bound functions and actions on entities and entity collections.