s/MainCU/ModuleCU/g


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74452 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.h b/lib/CodeGen/AsmPrinter/DwarfDebug.h
index 111ec33..101dc70 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -70,9 +70,8 @@
   ///
   SmallVector<CompileUnit *, 8> CompileUnits;
 
-  /// MainCU - Some platform prefers one compile unit per .o file. In such
-  /// cases, all dies are inserted in MainCU.
-  CompileUnit *MainCU;
+  /// ModuleCU - All DIEs are inserted in ModuleCU.
+  CompileUnit *ModuleCU;
 
   /// AbbreviationsSet - Used to uniquely define abbreviations.
   ///