[llvm] r198344 - [CMake] Add missing set_output_directory after Takumi's change in r198205.

[NAKAMURA Takumi]

Jordy and Doug,

Thanks for tweaking on cmake stuff and I am sorry to bother you guys.

FYI, I have introduced "clang standalone builder".
http://bb.pgr.jp/builders/msbuild-llvmclang-x64-msc17-DA
I am more certain not to break anything ;)

Please fix or tell me whenever anything goes wrong.

Ok, I knew, I have to feed an osx box in my room...

...Takumi