Update clang to r339409.

Change-Id: I800772d2d838223be1f6b40d490c4591b937fca2
diff --git a/linux-x64/clang/include/llvm/ObjectYAML/COFFYAML.h b/linux-x64/clang/include/llvm/ObjectYAML/COFFYAML.h
index 8794eaa..78f021f 100644
--- a/linux-x64/clang/include/llvm/ObjectYAML/COFFYAML.h
+++ b/linux-x64/clang/include/llvm/ObjectYAML/COFFYAML.h
@@ -67,6 +67,7 @@
   yaml::BinaryRef SectionData;
   std::vector<CodeViewYAML::YAMLDebugSubsection> DebugS;
   std::vector<CodeViewYAML::LeafRecord> DebugT;
+  std::vector<CodeViewYAML::LeafRecord> DebugP;
   Optional<CodeViewYAML::DebugHSection> DebugH;
   std::vector<Relocation> Relocations;
   StringRef Name;