Prefix `next' iterator operation with `llvm::'.

Fixes potential ambiguity problems on VS 2010.

Patch by nobled!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110029 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index 7612f43..c6b7ad6 100644
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -251,7 +251,7 @@
   OS << "(";
   for (op_iterator I = op_begin(), E = op_end(); I != E; ++I) {
     OS << **I;
-    if (next(I) != E)
+    if (llvm::next(I) != E)
       OS << OpStr;
   }
   OS << ")";
@@ -2805,7 +2805,7 @@
     return getUnknown(GEP);
   const SCEV *TotalOffset = getConstant(IntPtrTy, 0);
   gep_type_iterator GTI = gep_type_begin(GEP);
-  for (GetElementPtrInst::op_iterator I = next(GEP->op_begin()),
+  for (GetElementPtrInst::op_iterator I = llvm::next(GEP->op_begin()),
                                       E = GEP->op_end();
        I != E; ++I) {
     Value *Index = *I;