Merging r181363:

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r181363 | cdavis | 2013-05-07 14:14:15 -0700 (Tue, 07 May 2013) | 3 lines

MCStreamer: Also clear vector of W64UnwindInfos on reset().

Patch by Kai Nacke!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_33@182439 91177308-0d34-0410-b5e6-96231b3b80d8