Update clang to r339409.

Change-Id: I800772d2d838223be1f6b40d490c4591b937fca2
diff --git a/linux-x64/clang/include/llvm/MC/MCAsmLayout.h b/linux-x64/clang/include/llvm/MC/MCAsmLayout.h
index 1b20d5b..b711db3 100644
--- a/linux-x64/clang/include/llvm/MC/MCAsmLayout.h
+++ b/linux-x64/clang/include/llvm/MC/MCAsmLayout.h
@@ -37,11 +37,11 @@
   /// lower ordinal will be valid.
   mutable DenseMap<const MCSection *, MCFragment *> LastValidFragment;
 
-  /// \brief Make sure that the layout for the given fragment is valid, lazily
+  /// Make sure that the layout for the given fragment is valid, lazily
   /// computing it if necessary.
   void ensureValid(const MCFragment *F) const;
 
-  /// \brief Is the layout for this fragment valid?
+  /// Is the layout for this fragment valid?
   bool isFragmentValid(const MCFragment *F) const;
 
 public:
@@ -50,12 +50,12 @@
   /// Get the assembler object this is a layout for.
   MCAssembler &getAssembler() const { return Assembler; }
 
-  /// \brief Invalidate the fragments starting with F because it has been
+  /// Invalidate the fragments starting with F because it has been
   /// resized. The fragment's size should have already been updated, but
   /// its bundle padding will be recomputed.
   void invalidateFragmentsFrom(MCFragment *F);
 
-  /// \brief Perform layout for a single fragment, assuming that the previous
+  /// Perform layout for a single fragment, assuming that the previous
   /// fragment has already been laid out correctly, and the parent section has
   /// been initialized.
   void layoutFragment(MCFragment *Fragment);
@@ -72,31 +72,31 @@
   /// \name Fragment Layout Data
   /// @{
 
-  /// \brief Get the offset of the given fragment inside its containing section.
+  /// Get the offset of the given fragment inside its containing section.
   uint64_t getFragmentOffset(const MCFragment *F) const;
 
   /// @}
   /// \name Utility Functions
   /// @{
 
-  /// \brief Get the address space size of the given section, as it effects
+  /// Get the address space size of the given section, as it effects
   /// layout. This may differ from the size reported by \see getSectionSize() by
   /// not including section tail padding.
   uint64_t getSectionAddressSize(const MCSection *Sec) const;
 
-  /// \brief Get the data size of the given section, as emitted to the object
+  /// Get the data size of the given section, as emitted to the object
   /// file. This may include additional padding, or be 0 for virtual sections.
   uint64_t getSectionFileSize(const MCSection *Sec) const;
 
-  /// \brief Get the offset of the given symbol, as computed in the current
+  /// Get the offset of the given symbol, as computed in the current
   /// layout.
   /// \return True on success.
   bool getSymbolOffset(const MCSymbol &S, uint64_t &Val) const;
 
-  /// \brief Variant that reports a fatal error if the offset is not computable.
+  /// Variant that reports a fatal error if the offset is not computable.
   uint64_t getSymbolOffset(const MCSymbol &S) const;
 
-  /// \brief If this symbol is equivalent to A + Constant, return A.
+  /// If this symbol is equivalent to A + Constant, return A.
   const MCSymbol *getBaseSymbol(const MCSymbol &Symbol) const;
 
   /// @}