Test merge with thrust::seq in __device__ code.
Test merge with thrust::seq in __device__ code.

sdalton1/thrust,thvasilo/thrust,GrimDerp/thrust,marksantos/thrust,arnabgho/thrust,zeryx/thrust,dachziegel/thrust,sdalton1/thrust,marksantos/thrust,mohamed-ali/thrust,zeryx/thrust,xiongzhanblake/thrust_src,marksantos/thrust,egaburov/thrust,thrust/thrust,raygit/thrust,mohamed-ali/thrust,GrimDerp/thrust,dachziegel/thrust,raygit/thrust,sarvex/thrust,Ricardo666666/thrust,GrimDerp/thrust,xiongzhanblake/thrust_src,andrewcorrigan/thrust-multi-permutation-iterator,Ricardo666666/thrust,zhenglaizhang/thrust,thrust/thrust,thrust/thrust,arnabgho/thrust,zeryx/thrust,andrewcorrigan/thrust-multi-permutation-iterator,jaredhoberock/thrust,xiongzhanblake/thrust,dachziegel/thrust,jaredhoberock/thrust,mohamed-ali/thrust,arnabgho/thrust,thvasilo/thrust,andrewcorrigan/thrust-multi-permutation-iterator,xiongzhanblake/thrust,xiongzhanblake/thrust,jaredhoberock/thrust,egaburov/thrust,thrust/thrust,sdalton1/thrust,sarvex/thrust,jaredhoberock/thrust,thvasilo/thrust,zhenglaizhang/thrust,jaredhoberock/thrust,zhenglaizhang/thrust,xiongzhanblake/thrust_src,egaburov/thrust,Ricardo666666/thrust,raygit/thrust,thrust/thrust,sarvex/thrust