Update clang to r339409.

Change-Id: I800772d2d838223be1f6b40d490c4591b937fca2
diff --git a/linux-x64/clang/include/llvm/Analysis/LoopAnalysisManager.h b/linux-x64/clang/include/llvm/Analysis/LoopAnalysisManager.h
index 417ee97..00e562c 100644
--- a/linux-x64/clang/include/llvm/Analysis/LoopAnalysisManager.h
+++ b/linux-x64/clang/include/llvm/Analysis/LoopAnalysisManager.h
@@ -69,7 +69,7 @@
 extern template class AllAnalysesOn<Loop>;
 
 extern template class AnalysisManager<Loop, LoopStandardAnalysisResults &>;
-/// \brief The loop analysis manager.
+/// The loop analysis manager.
 ///
 /// See the documentation for the AnalysisManager template for detail
 /// documentation. This typedef serves as a convenient way to refer to this