Remove call to UpdateListOfMethods
Update handleDeclNew to be more consistent with namespace handling

Additional namespace declaration do not come in as a canonical decl.
We also ought to support namespace not declared in the global scope
(i.e. nested namespace).
Add support for 'noaddr' to TNamed::ls for run independent output
white space
Add proper support for namespaces in TClingDataMemberInfo iteration

Add code similar to the one in TClingMethodInfo to support the iteration
over the potentatial multiple context of a namespace.