Merging r214060:
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r214060 | brad | 2014-07-27 18:57:32 -0700 (Sun, 27 Jul 2014) | 2 lines

Add missing override keyword to OpenBSD IsIntegratedAssemblerDefault().

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git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_35@214765 91177308-0d34-0410-b5e6-96231b3b80d8