Add support to emit debug info for virtual functions and virtual base classes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90474 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.h b/lib/CodeGen/AsmPrinter/DwarfDebug.h
index 002e777..6c8a28d 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -154,6 +154,8 @@
   /// (at the end of the module) as DW_AT_inline.
   SmallPtrSet<DIE *, 4> InlinedSubprogramDIEs;
 
+  DenseMap<DIE *, WeakVH> ContainingTypeMap;
+
   /// AbstractSubprogramDIEs - Collection of abstruct subprogram DIEs.
   SmallPtrSet<DIE *, 4> AbstractSubprogramDIEs;