Made it possible to call the assignment operator on an Eigen::Block from a CUDA kernel.
Made it possible to call the assignment operator on an Eigen::Block from a CUDA kernel.

rotorliu/eigen,mjbshaw/Eigen,madlib/eigen_backup,mjbshaw/Eigen,rotorliu/eigen,mjbshaw/Eigen,rotorliu/eigen,madlib/eigen_backup,mjbshaw/Eigen,madlib/eigen_backup,madlib/eigen_backup,rotorliu/eigen