Represents a unique identification for
SMethod within the containing
SAbstractConcept (along with all its ancestors).
One needs to think of it as a method signature abstraction.
For instance, in Java we would have it as a composite of method name and its' parameter types.
Currently we have it as a SNodeId of the corresponding MethodDeclaration node in the behavior model.
Each
SMethod must have an id.
Uniqueness must be provided within all methods belonging to all the concepts in the hierarchy
of the specific
SAbstractConcept.
Note that generated SMethodId is the same for all the methods overriding some base method.