mapping: detection of numeric enum

[jirikuncar]

Signed-off-by: Jiri Kuncar jiri.kuncar@cern.ch

[nharraud]

@jirikuncar Looks good. I suppose you saw the QuantifiedCode messages, can I merge or do you plan to work on it?

[jirikuncar]

• [x] added tests
• [x] improved coverage
• [x] fixed quantified code warnings