[FIX] BamIO: fix count member name resolution on gcc
[FIX] BamIO: fix count member name resolution on gcc

PF2-pasteur-fr/seqan,ktrappe/seqan,xp3i4/seqan,budach/seqan,catkira/seqan,bayolau/seqan,bestrauc/seqan,budach/seqan,h-2/seqan,h-2/seqan,ktrappe/seqan,limeng12/seqan,hannespetur/SeqAnHTS,budach/seqan,catkira/seqan,h-2/seqan,ktrappe/seqan,xp3i4/seqan,h-2/seqan,JohnReid/seqan,bayolau/seqan,limeng12/seqan,h-2/seqan,xp3i4/seqan,JohnReid/seqan,catkira/seqan,limeng12/seqan,PF2-pasteur-fr/seqan,ktrappe/seqan,ktrappe/seqan,budach/seqan,hannespetur/SeqAnHTS,hannespetur/SeqAnHTS,bestrauc/seqan,ktrappe/seqan,budach/seqan,hannespetur/SeqAnHTS,PF2-pasteur-fr/seqan,budach/seqan,xenigmax/seqan,bestrauc/seqan,JohnReid/seqan,bayolau/seqan,xp3i4/seqan,h-2/seqan,hannespetur/SeqAnHTS,bayolau/seqan,hannespetur/SeqAnHTS,budach/seqan,bayolau/seqan,limeng12/seqan,JohnReid/seqan,xenigmax/seqan,xenigmax/seqan,bestrauc/seqan,h-2/seqan,PF2-pasteur-fr/seqan,bayolau/seqan,limeng12/seqan,PF2-pasteur-fr/seqan,xenigmax/seqan,PF2-pasteur-fr/seqan,ktrappe/seqan,budach/seqan,JohnReid/seqan,PF2-pasteur-fr/seqan,bestrauc/seqan,bayolau/seqan,xp3i4/seqan,bestrauc/seqan,limeng12/seqan,catkira/seqan,budach/seqan,JohnReid/seqan,ktrappe/seqan,h-2/seqan,PF2-pasteur-fr/seqan,JohnReid/seqan,xenigmax/seqan,xenigmax/seqan,JohnReid/seqan,catkira/seqan,limeng12/seqan,xp3i4/seqan,xenigmax/seqan,h-2/seqan,PF2-pasteur-fr/seqan,limeng12/seqan,hannespetur/SeqAnHTS,xp3i4/seqan,bestrauc/seqan,ktrappe/seqan,xenigmax/seqan,hannespetur/SeqAnHTS,catkira/seqan,bestrauc/seqan,catkira/seqan,limeng12/seqan,catkira/seqan,JohnReid/seqan,hannespetur/SeqAnHTS,bayolau/seqan,catkira/seqan,xp3i4/seqan,xp3i4/seqan,bayolau/seqan