After using extend function, the child name is not appropriate

Nobody has claimed this yet.

As in the definition of var extend = function(protoProps, staticProps) ,
`child = function(){ return parent.apply(this, arguments); };`
the return child function's name is set as 'child'.

Thus, any new object created by the child function, when you inspect them in Chrome, the name of constructor is displayed as 'child'.

Would it be better to display the name of constructor using parent constructor's name ?

From my point of view, it gives developers intuitive overview what the object essentially is. In previous case, "Backbone.Collection" should be displayed after todos.
Because

I was using the todo list example http://todomvc.com/examples/backbone/

Start with the extend function definition shown in the issue, especially the child constructor created as `function(){ return parent.apply(this, arguments); }`. Investigate how Backbone's constructor names are exposed in Chrome for objects created through extend; done means the displayed constructor name is more representative of the parent or derived type without breaking existing extend behavior.

Written by the indexing model from the issue text.