extending tests
start cor
adding context
with cor
skeleton for visitor with cor
trying refactor for symbolmap visitor
proof of concept ok
ready to rox
full test for new visitor symbol map
now new collector symbol map ok
replacing new visitor seems ok
refactor file level
moving concrete file level to symbol map
refactor object level
shortcut shortcut everywhere
moving class with symbol map
starting vertex collector
visitor for class vertex
visitor for interface vertex
refactor for vertex collector almost ok