Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/DebugInfo/CodeView/SymbolDumper.h b/linux-x64/clang/include/llvm/DebugInfo/CodeView/SymbolDumper.h
new file mode 100644
index 0000000..293daa8
--- /dev/null
+++ b/linux-x64/clang/include/llvm/DebugInfo/CodeView/SymbolDumper.h
@@ -0,0 +1,57 @@
+//===-- SymbolDumper.h - CodeView symbol info dumper ------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEBUGINFO_CODEVIEW_SYMBOLDUMPER_H
+#define LLVM_DEBUGINFO_CODEVIEW_SYMBOLDUMPER_H
+
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/StringSet.h"
+#include "llvm/DebugInfo/CodeView/SymbolDumpDelegate.h"
+#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
+#include "llvm/DebugInfo/CodeView/TypeIndex.h"
+
+namespace llvm {
+class ScopedPrinter;
+
+namespace codeview {
+class TypeCollection;
+
+/// Dumper for CodeView symbol streams found in COFF object files and PDB files.
+class CVSymbolDumper {
+public:
+  CVSymbolDumper(ScopedPrinter &W, TypeCollection &Types,
+                 CodeViewContainer Container,
+                 std::unique_ptr<SymbolDumpDelegate> ObjDelegate,
+                 bool PrintRecordBytes)
+      : W(W), Types(Types), Container(Container),
+        ObjDelegate(std::move(ObjDelegate)),
+        PrintRecordBytes(PrintRecordBytes) {}
+
+  /// Dumps one type record.  Returns false if there was a type parsing error,
+  /// and true otherwise.  This should be called in order, since the dumper
+  /// maintains state about previous records which are necessary for cross
+  /// type references.
+  Error dump(CVRecord<SymbolKind> &Record);
+
+  /// Dumps the type records in Data. Returns false if there was a type stream
+  /// parse error, and true otherwise.
+  Error dump(const CVSymbolArray &Symbols);
+
+private:
+  ScopedPrinter &W;
+  TypeCollection &Types;
+  CodeViewContainer Container;
+  std::unique_ptr<SymbolDumpDelegate> ObjDelegate;
+
+  bool PrintRecordBytes;
+};
+} // end namespace codeview
+} // end namespace llvm
+
+#endif // LLVM_DEBUGINFO_CODEVIEW_SYMBOLDUMPER_H