Fixed hhvm on travis
Fixed hhvm on travis

5outh/mockery,tfrommen/mockery,yeka/mockery,jenswiese/mockery,5outh/mockery,yeka/mockery,tfrommen/mockery,Big-Shark/mockery,fhinkel/mockery,florianeckerstorfer/mockery,TiagoMaiaL/mockery,Big-Shark/mockery,TiagoMaiaL/mockery,fhinkel/mockery,jenswiese/mockery,kminh/mockery,florianeckerstorfer/mockery,padraic/mockery,kminh/mockery