Fix consumedInOp for ReduceKernels.
Fix consumedInOp for ReduceKernels.

CulpaBS/wbBach,mrakgr/futhark,ihc/futhark,mrakgr/futhark,ihc/futhark,diku-dk/futhark,ihc/futhark,diku-dk/futhark,HIPERFIT/futhark,HIPERFIT/futhark,mrakgr/futhark,diku-dk/futhark,diku-dk/futhark,diku-dk/futhark,HIPERFIT/futhark