get MMI out of the label uniquing business, just go to MCContext
to get unique assembler temporary labels.

llvm-svn: 98489
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 3776942..41d24bb 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -1972,7 +1972,7 @@
   if (I == DbgScopeEndMap.end())
     return;
 
-  MCSymbol *Label = MMI->getLabelSym(MMI->NextLabelID());
+  MCSymbol *Label = MMI->getContext().CreateTempSymbol();
   Asm->OutStreamer.EmitLabel(Label);
 
   SmallVector<DbgScope*, 2> &SD = I->second;
@@ -2220,7 +2220,7 @@
     assert(0 && "Unexpected scope info");
 
   unsigned Src = GetOrCreateSourceID(Dir, Fn);
-  MCSymbol *Label = MMI->getLabelSym(MMI->NextLabelID());
+  MCSymbol *Label = MMI->getContext().CreateTempSymbol();
   Lines.push_back(SrcLineInfo(Line, Col, Src, Label));
 
   if (TimePassesIsEnabled)