bugs/5.cfa: In function ‘_X4mainFi___1’:
bugs/5.cfa:8:43: error: ‘_unq0_finished_’ undeclared (first use in this function)
   foo(bar());
                                           ^              
bugs/5.cfa:8:43: note: each undeclared identifier is reported only once for each function it appears in
bugs/5.cfa:8:225: warning: left-hand operand of comma expression has no effect [-Wunused-value]
   foo(bar());
                                                                                                                                                                                                                                 ^
