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Doug Gregor committed 967a1d42bf9M
Merge pull request #3976 from DougGregor/swift-3-nserror-wrapping [Swift 3.0] Eliminate double-wrapping of NSErrors in _SwiftNativeNSError
Merge pull request #3976 from DougGregor/swift-3-nserror-wrapping [Swift 3.0] Eliminate double-wrapping of NSErrors in _SwiftNativeNSError