[PATCH] D22426: Fix automatic detection of ARM MSVC toolset in clang.exe

[Saleem Abdulrasool via cfe-commits]

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This revision is now accepted and ready to land.

I imagine that at this point, most usage is still based around the x86 toolchain rather than x64 (I didnt even notice the x64 tools until recently).  That is, any reason that we shouldnt be using x64 for x64, x64_x86 for x86, and x64_arm for ARM?


https://reviews.llvm.org/D22426