Refactor the record decl forward declaration code a bit.

llvm-svn: 148904
diff --git a/clang/lib/CodeGen/CGDebugInfo.h b/clang/lib/CodeGen/CGDebugInfo.h
index 8e1dd2b..6c56efc 100644
--- a/clang/lib/CodeGen/CGDebugInfo.h
+++ b/clang/lib/CodeGen/CGDebugInfo.h
@@ -232,6 +232,10 @@
   /// getContextDescriptor - Get context info for the decl.
   llvm::DIDescriptor getContextDescriptor(const Decl *Decl);
 
+  /// createRecordFwdDecl - Create a forward decl for a RecordType in a given
+  /// context.
+  llvm::DIType createRecordFwdDecl(const RecordDecl *, llvm::DIDescriptor);
+  
   /// createContextChain - Create a set of decls for the context chain.
   llvm::DIDescriptor createContextChain(const Decl *Decl);