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r295149 | rsmith | 2017-02-14 20:18:23 -0800 (Tue, 14 Feb 2017) | 2 lines

Fix assertion failure due to implicit special member lookup lacking a source location.

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git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_40@295233 91177308-0d34-0410-b5e6-96231b3b80d8