Constify methods and reuse RecordOrganizer object.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43284 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CodeGen/CodeGenFunction.h b/CodeGen/CodeGenFunction.h
index c14687e..5980e51 100644
--- a/CodeGen/CodeGenFunction.h
+++ b/CodeGen/CodeGenFunction.h
@@ -299,7 +299,7 @@
   void StartBlock(const char *N);
 
   /// getRecordLayoutInfo - Return record layout info.
-  RecordLayoutInfo *getRecordLayoutInfo(CodeGenTypes &CGT, QualType RTy);
+  const RecordLayoutInfo *getRecordLayoutInfo(CodeGenTypes &CGT, QualType RTy);
   //===--------------------------------------------------------------------===//
   //                            Declaration Emission
   //===--------------------------------------------------------------------===//