Bolt1.2: Ubuntu 32bit: gcc4.8.1: std::merge and std::stable_sort api compilation failure.

[jhkumar]

Using std::merge/std::stable_sort function with device_vector as a inputs( running function on CPU when data present on GPU) doesn't compile .

[avinashcpandey]

Its is compiling fine on Windows 32/64 and linux 64bit. I am seeing this with 32 bit Linux(Ubuntu) only which may be because of compiler restriction.