Seems '${cmake_2_8_12_PRIVATE}' was removed a long time ago, so it should
be just PRIVATE keyword here.
Reviewed By: john.brawn
Differential Revision: https://reviews.llvm.org/D86091
Set the right target name in clang/examples/Attribute.
Add a missing dependency in the TableGen GlobalISel sublibrary.
Skip building the Bye pass plugin example on windows; plugins
that should have undefined symbols that are found in the host
process aren't supported on windows - this matches what was done
for a unit test in bc8e442188.
Yafei Liu