More complete solution to deleting blocks and debug info.

llvm-svn: 31129
diff --git a/llvm/lib/CodeGen/BranchFolding.cpp b/llvm/lib/CodeGen/BranchFolding.cpp
index 0752e3c..4643c74 100644
--- a/llvm/lib/CodeGen/BranchFolding.cpp
+++ b/llvm/lib/CodeGen/BranchFolding.cpp
@@ -75,7 +75,7 @@
          I != E; ++I) {
       if ((unsigned)I->getOpcode() == DWARF_LABELOpc) {
         // The label ID # is always operand #0, an immediate.
-        MDI->RemoveLabelInfo(I->getOperand(0).getImm());
+        MDI->InvalidateLabel(I->getOperand(0).getImm());
       }
     }
   }