Hi,

Public methods are needed to access added functions and variables obtained outside libabigail
while calculating abi diff between libraries with no debug information available.

This patch (available in attachment) adds new public methods in corpus_diff class- 
added_unrefed_function_symbols() and added_unrefed_variable_symbols() to fix same.

Thanks
-- 
     
     Sinny Kumari
(sinny at redhat dot com)