IPDBRawSymbol.h - reduce StringRef.h include to forward declaration. NFC.

diff --git a/llvm/include/llvm/DebugInfo/PDB/IPDBRawSymbol.h b/llvm/include/llvm/DebugInfo/PDB/IPDBRawSymbol.h
index b24e712..5480d6b 100644 (file)
--- a/llvm/include/llvm/DebugInfo/PDB/IPDBRawSymbol.h
+++ b/llvm/include/llvm/DebugInfo/PDB/IPDBRawSymbol.h
@@ -12,12 +12,12 @@
 #include "PDBTypes.h"
 #include "llvm/ADT/BitmaskEnum.h"
 #include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringRef.h"
 #include "llvm/DebugInfo/CodeView/CodeView.h"
 #include <memory>
 
 namespace llvm {
 class raw_ostream;
+class StringRef;
 
 namespace pdb {