Variable viewer: Class value info is not human friendly

[Tyriar]

Testing #10170

After running this:

class MyClass:
    """A simple example class"""
    i = 12345

    def f(self):
        return 'hello world'

x = MyClass()

I was expecting something like MyClass or more useful MyClass { var: ... }

[rchiodo]

This is what python returns. The debugger shows the same thing.