Fusion the two similar specialization of Sparse2Dense Assignment. This change also fixes a compilation issue with MSVC<=2013.
Fusion the two similar specialization of Sparse2Dense Assignment.
This change also fixes a compilation issue with MSVC<=2013.

pasuka/eigen,ROCmSoftwarePlatform/hipeigen,ROCmSoftwarePlatform/hipeigen,pasuka/eigen,pasuka/eigen,ROCmSoftwarePlatform/hipeigen,pasuka/eigen,ritsu1228/eigen,ROCmSoftwarePlatform/hipeigen,ritsu1228/eigen,ritsu1228/eigen,ritsu1228/eigen,ritsu1228/eigen,pasuka/eigen