Merging r342152:

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r342152 | erichkeane | 2018-09-13 09:58:24 -0700 (Thu, 13 Sep 2018) | 6 lines

[NFC]Refactor MultiVersion Resolver Emission to combine types

Previously, both types (plus the future target-clones) of
multiversioning had a separate ResolverOption structure and emission
function.  This patch combines the two, at the expense of a slightly
more expensive sorting function.
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llvm-svn: 348681