Currently, we use `code.co_name` for the frame name. This does not include the
name of the class if it was a method. This tries to extract the qualified name
for each frame where possible.

- methods: *typically* have `self` as a positional argument and we can inspect
	   it to extract the class name
- class methods: *typically* have `cls` as a positional argument and we can
                 inspect it to extract the class name
- static methods: no obvious way of extract the class name

…-frame