Next on a pointer increments the pointer, not an iterator

llvm-svn: 15375
diff --git a/llvm/lib/CodeGen/BranchFolding.cpp b/llvm/lib/CodeGen/BranchFolding.cpp
index ef28c95..a82cad2 100644
--- a/llvm/lib/CodeGen/BranchFolding.cpp
+++ b/llvm/lib/CodeGen/BranchFolding.cpp
@@ -114,7 +114,7 @@
   // explicitly.
   if (MBB->empty()) {
     if (MBB->pred_empty()) return false;
-    MachineFunction::iterator FallThrough = next(MBB);
+    MachineFunction::iterator FallThrough =next(MachineFunction::iterator(MBB));
     assert(FallThrough != MBB->getParent()->end() &&
            "Fell off the end of the function!");
     while (!MBB->pred_empty()) {