Update clang to r339409.

Change-Id: I800772d2d838223be1f6b40d490c4591b937fca2
diff --git a/linux-x64/clang/include/llvm/DebugInfo/PDB/PDBSymbolFunc.h b/linux-x64/clang/include/llvm/DebugInfo/PDB/PDBSymbolFunc.h
index d6013e2..05d585d 100644
--- a/linux-x64/clang/include/llvm/DebugInfo/PDB/PDBSymbolFunc.h
+++ b/linux-x64/clang/include/llvm/DebugInfo/PDB/PDBSymbolFunc.h
@@ -39,7 +39,9 @@
   FORWARD_SYMBOL_METHOD(getAddressSection)
   FORWARD_SYMBOL_ID_METHOD(getClassParent)
   FORWARD_SYMBOL_METHOD(isCompilerGenerated)
+  FORWARD_SYMBOL_METHOD(isConstructorVirtualBase)
   FORWARD_SYMBOL_METHOD(isConstType)
+  FORWARD_SYMBOL_METHOD(isCxxReturnUdt)
   FORWARD_SYMBOL_METHOD(hasCustomCallingConvention)
   FORWARD_SYMBOL_METHOD(hasFarReturn)
   FORWARD_SYMBOL_METHOD(hasAlloca)