Allowing implicit aliasing of parameters (public comment c201412e00001)

Support only when the function/action is the last segment: A service may support invoking a function as the last segment in a path by omitting the parens and supplying the named parameters as query options prefixed with the "@" sign ( ODATA-763 and ODATA-644 ). For maximum interoperability, services must continue to support the parens syntax as well. Precedence rules apply for cases where the function name conflicts with a property name. In particular, the declared property wins over a function, and a function would win over a dynamic property.