Summary:
The generation of class prefixes was not taking into account the full
classname -- the namespace was not being prepended to it. Fixed that and
also re-organized the code a bit, removed some Wshadow warnings also.
This commit fixes 'make examples' and 'make check'.
Reviewers: tasn, cedric, q66
CC: felipealmeida, smohanty, cedric
Differential Revision: https://phab.enlightenment.org/D1100
1fef6f92d3