Turn these two options in to trinary state so that they can be
turned on and off separate from the platform if you're on darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162487 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.h b/lib/CodeGen/AsmPrinter/DwarfDebug.h
index 78c8716..f94c9d0 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -309,7 +309,7 @@
 
   // A holder for the DarwinGDBCompat flag so that the compile unit can use it.
   bool isDarwinGDBCompat;
-
+  bool hasDwarfAccelTables;
 private:
 
   /// assignAbbrevNumber - Define a unique number for the abbreviation.
@@ -527,6 +527,7 @@
   /// useDarwinGDBCompat - returns whether or not to limit some of our debug
   /// output to the limitations of darwin gdb.
   bool useDarwinGDBCompat() { return isDarwinGDBCompat; }
+  bool useDwarfAccelTables() { return hasDwarfAccelTables; }
 };
 } // End of namespace llvm