Update clang to r339409.

Change-Id: I800772d2d838223be1f6b40d490c4591b937fca2
diff --git a/linux-x64/clang/include/llvm/ObjectYAML/YAML.h b/linux-x64/clang/include/llvm/ObjectYAML/YAML.h
index 93266dd..163cd8d 100644
--- a/linux-x64/clang/include/llvm/ObjectYAML/YAML.h
+++ b/linux-x64/clang/include/llvm/ObjectYAML/YAML.h
@@ -21,7 +21,7 @@
 
 namespace yaml {
 
-/// \brief Specialized YAMLIO scalar type for representing a binary blob.
+/// Specialized YAMLIO scalar type for representing a binary blob.
 ///
 /// A typical use case would be to represent the content of a section in a
 /// binary file.
@@ -64,11 +64,11 @@
 class BinaryRef {
   friend bool operator==(const BinaryRef &LHS, const BinaryRef &RHS);
 
-  /// \brief Either raw binary data, or a string of hex bytes (must always
+  /// Either raw binary data, or a string of hex bytes (must always
   /// be an even number of characters).
   ArrayRef<uint8_t> Data;
 
-  /// \brief Discriminator between the two states of the `Data` member.
+  /// Discriminator between the two states of the `Data` member.
   bool DataIsHexString = true;
 
 public:
@@ -77,7 +77,7 @@
   BinaryRef(StringRef Data)
       : Data(reinterpret_cast<const uint8_t *>(Data.data()), Data.size()) {}
 
-  /// \brief The number of bytes that are represented by this BinaryRef.
+  /// The number of bytes that are represented by this BinaryRef.
   /// This is the number of bytes that writeAsBinary() will write.
   ArrayRef<uint8_t>::size_type binary_size() const {
     if (DataIsHexString)
@@ -85,11 +85,11 @@
     return Data.size();
   }
 
-  /// \brief Write the contents (regardless of whether it is binary or a
+  /// Write the contents (regardless of whether it is binary or a
   /// hex string) as binary to the given raw_ostream.
   void writeAsBinary(raw_ostream &OS) const;
 
-  /// \brief Write the contents (regardless of whether it is binary or a
+  /// Write the contents (regardless of whether it is binary or a
   /// hex string) as hex to the given raw_ostream.
   ///
   /// For example, a possible output could be `DEADBEEFCAFEBABE`.