Update clang to r339409.

Change-Id: I800772d2d838223be1f6b40d490c4591b937fca2
diff --git a/linux-x64/clang/include/llvm/MC/MCLabel.h b/linux-x64/clang/include/llvm/MC/MCLabel.h
index b6579fd..aaf7069 100644
--- a/linux-x64/clang/include/llvm/MC/MCLabel.h
+++ b/linux-x64/clang/include/llvm/MC/MCLabel.h
@@ -18,11 +18,11 @@
 
 class raw_ostream;
 
-/// \brief Instances of this class represent a label name in the MC file,
+/// Instances of this class represent a label name in the MC file,
 /// and MCLabel are created and uniqued by the MCContext class.  MCLabel
 /// should only be constructed for valid instances in the object file.
 class MCLabel {
-  // \brief The instance number of this Directional Local Label.
+  // The instance number of this Directional Local Label.
   unsigned Instance;
 
 private: // MCContext creates and uniques these.
@@ -34,16 +34,16 @@
   MCLabel(const MCLabel &) = delete;
   MCLabel &operator=(const MCLabel &) = delete;
 
-  /// \brief Get the current instance of this Directional Local Label.
+  /// Get the current instance of this Directional Local Label.
   unsigned getInstance() const { return Instance; }
 
-  /// \brief Increment the current instance of this Directional Local Label.
+  /// Increment the current instance of this Directional Local Label.
   unsigned incInstance() { return ++Instance; }
 
-  /// \brief Print the value to the stream \p OS.
+  /// Print the value to the stream \p OS.
   void print(raw_ostream &OS) const;
 
-  /// \brief Print the value to stderr.
+  /// Print the value to stderr.
   void dump() const;
 };