Enable branch coverage reports generation
Enable branch coverage reports generation

Change-Id: Ia2aef6b920659b315a03e9390fab54105ecc1714

wurikiji/forestdb,nvoron23/forestdb,zhaog/forestdb,joliss/forestdb,sushmaad/forestdb,yyangpan/forestdb,jinxuan/forestdb,seem-sky/forestdb,jinxuan/forestdb,nvoron23/forestdb,zhaog/forestdb,seem-sky/forestdb,hisundar/forestdb,joliss/forestdb,yyangpan/forestdb,sushmaad/forestdb,hisundar/forestdb,couchbase/forestdb,wurikiji/forestdb,couchbase/forestdb