Added the Array include's warning for GCC.
Added the Array include's warning for GCC.

pasuka/eigen,Zefz/eigen,TSC21/Eigen,pasuka/eigen,toastedcrumpets/eigen,TSC21/Eigen,ritsu1228/eigen,TSC21/Eigen,pasuka/eigen,pasuka/eigen,toastedcrumpets/eigen,toastedcrumpets/eigen,ritsu1228/eigen,Zefz/eigen,Zefz/eigen,ritsu1228/eigen,ritsu1228/eigen,TSC21/Eigen,ritsu1228/eigen,ROCmSoftwarePlatform/hipeigen,pasuka/eigen,ROCmSoftwarePlatform/hipeigen,ROCmSoftwarePlatform/hipeigen,ROCmSoftwarePlatform/hipeigen,toastedcrumpets/eigen,Zefz/eigen