[llvm-pdbutil] Add a mode to `bytes` for dumping split debug chunks.

llvm-svn: 306309
diff --git a/llvm/tools/llvm-pdbutil/llvm-pdbutil.h b/llvm/tools/llvm-pdbutil/llvm-pdbutil.h
index ea62f18..837d8eb 100644
--- a/llvm/tools/llvm-pdbutil/llvm-pdbutil.h
+++ b/llvm/tools/llvm-pdbutil/llvm-pdbutil.h
@@ -117,7 +117,7 @@
 extern llvm::cl::opt<bool> ModuleSyms;
 extern llvm::cl::opt<bool> ModuleC11;
 extern llvm::cl::opt<bool> ModuleC13;
-
+extern llvm::cl::opt<bool> SplitChunks;
 } // namespace bytes
 
 namespace dump {