Debugger: Show base class names simplified

Especially for highly templated code it's awful to have the
name column populated by 'std::basic_string<...' gibberish.

Change-Id: I7344bed77a0e29cf88f031e1a663ed6c4c1c7b51
Reviewed-by: David Schulz <david.schulz@digia.com>
Debugger: Shorten function signatures in break and stack views

Especially useful with std:: types.

Change-Id: Iee7ae26b25ac162ac31944cd2a9c16ca4bf63f1c
Reviewed-by: David Schulz <david.schulz@digia.com>