Add virtual method to Object to ease dictionary code

Add virtual method to Object to ease dictionary code

Add a virtual method at the root of the object hierarchy
that returns the name of the object that is used in the
namespace dictionary. Only object types that are kept in
the dictionary need to overwrite the default implementation. 
Committed: https://code.google.com/p/dart/source/detail?r=12577

[hausner, 2012-09-19 00:05:39]

A small step towards better namespace implementation.

[regis, 2012-09-19 01:22:57]

LGTM, but why not reuse the existing name() and Name() methods of the different
objects and making them virtual after picking a common name?

[hausner, 2012-09-19 18:02:22]

Thanks for the review. We used Name() in some classes and name() in others. So I
introduced a new function that can pick whichever name is appropriate as
dictionary key.

[regis, 2012-09-19 18:59:42]

On 2012/09/19 18:02:22, hausner wrote:
> Thanks for the review. We used Name() in some classes and name() in others. So
I
> introduced a new function that can pick whichever name is appropriate as
> dictionary key.

By "picking a common name", I meant we could rename "name()" to "Name()" and
make it virtual. You would then use it instead of the one you introduced.