Use `llvm::next' instead of `next' to make VC++ 2010 happy.

llvm-svn: 105168
diff --git a/llvm/lib/CodeGen/LatencyPriorityQueue.cpp b/llvm/lib/CodeGen/LatencyPriorityQueue.cpp
index 03b4eab..b9527fa 100644
--- a/llvm/lib/CodeGen/LatencyPriorityQueue.cpp
+++ b/llvm/lib/CodeGen/LatencyPriorityQueue.cpp
@@ -118,7 +118,7 @@
 SUnit *LatencyPriorityQueue::pop() {
   if (empty()) return NULL;
   std::vector<SUnit *>::iterator Best = Queue.begin();
-  for (std::vector<SUnit *>::iterator I = next(Queue.begin()),
+  for (std::vector<SUnit *>::iterator I = llvm::next(Queue.begin()),
        E = Queue.end(); I != E; ++I)
     if (Picker(*Best, *I))
       Best = I;