rename some block test classes to ensure they don't conflict
rename some block test classes to ensure they don't conflict

mirah/mirah,felixvf/mirah,felixvf/mirah,uujava/mirah,aspleenic/mirah,aspleenic/mirah,mirah/mirah,KeenS/mirah,uujava/mirah,KeenS/mirah,uujava/mirah,mirah/mirah,aspleenic/mirah,mirah/mirah,KeenS/mirah,felixvf/mirah,uujava/mirah,aspleenic/mirah,uujava/mirah,felixvf/mirah,aspleenic/mirah,KeenS/mirah