fix a fixme in TargetLoweringObjectFile::getExprForDwarfReference
where we used ot create an MCSymbol for ".".  Now emit an assembler
temporary label and reference it instead of "." textually.

rdar://7739457


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98292 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TargetLoweringObjectFileImpl.cpp b/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
index c03ed45..788bbf1 100644
--- a/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
+++ b/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
@@ -421,7 +421,7 @@
     }
 
     return TargetLoweringObjectFile::
-      getExprForDwarfReference(Sym, MMI,
+      getExprForDwarfReference(Sym, Mang, MMI,
                                Encoding & ~dwarf::DW_EH_PE_indirect, Streamer);
   }
 
@@ -784,8 +784,8 @@
     }
 
     return TargetLoweringObjectFile::
-      getExprForDwarfReference(Sym, MMI, Encoding & ~dwarf::DW_EH_PE_indirect,
-                               Streamer);
+      getExprForDwarfReference(Sym, Mang, MMI,
+                               Encoding & ~dwarf::DW_EH_PE_indirect, Streamer);
   }
 
   return TargetLoweringObjectFile::