Make functions in altivec.h be __inline__. As they are all also marked __always_inline__, this has likely been meant from the start.
Make functions in altivec.h be __inline__. As they are all also marked
__always_inline__, this has likely been meant from the start.

Review: http://reviews.llvm.org/D18015

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@263302 91177308-0d34-0410-b5e6-96231b3b80d8

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