Add a flag to DwarfDebug to allow it to communicate whether or not

we're using the darwin old gdb compat mode for emitting dwarf.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162486 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/AsmPrinter/DwarfDebug.cpp

@@ -145,6 +145,8 @@ DwarfDebug::DwarfDebug(AsmPrinter *A, Module *M)
     DwarfAccelTables = true;
     DarwinGDBCompat = true;
   }
+
+  isDarwinGDBCompat = DarwinGDBCompat;
   
   {
     NamedRegionTimer T(DbgTimerName, DWARFGroupName, TimePassesIsEnabled);