Update clang to r339409.

Change-Id: I800772d2d838223be1f6b40d490c4591b937fca2
diff --git a/linux-x64/clang/include/llvm/BinaryFormat/Dwarf.def b/linux-x64/clang/include/llvm/BinaryFormat/Dwarf.def
index 57e2596..944c5dd 100644
--- a/linux-x64/clang/include/llvm/BinaryFormat/Dwarf.def
+++ b/linux-x64/clang/include/llvm/BinaryFormat/Dwarf.def
@@ -856,6 +856,7 @@
 // TODO: Add Mach-O and COFF names.
 // Official DWARF sections.
 HANDLE_DWARF_SECTION(DebugAbbrev, ".debug_abbrev", "debug-abbrev")
+HANDLE_DWARF_SECTION(DebugAddr, ".debug_addr", "debug-addr")
 HANDLE_DWARF_SECTION(DebugAranges, ".debug_aranges", "debug-aranges")
 HANDLE_DWARF_SECTION(DebugInfo, ".debug_info", "debug-info")
 HANDLE_DWARF_SECTION(DebugTypes, ".debug_types", "debug-types")