[PATCH] Add HSAIL target

[Rafael Ávila de Espíndola]

================
Comment at: lib/Target/HSAIL/CMakeLists.txt:19
@@ +18,3 @@
+  NAMES
+  libHSAIL/Brig.h)
+
----------------
Please leave this out of the first version.

Having two code paths in CodeGen in pretty bad, specially when one of them depends on an external library.

http://reviews.llvm.org/D9751

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