Add llvm namespace to llvm::next.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189912 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/R600/AMDILCFGStructurizer.cpp b/lib/Target/R600/AMDILCFGStructurizer.cpp
index 481b5a7..80190c9 100644
--- a/lib/Target/R600/AMDILCFGStructurizer.cpp
+++ b/lib/Target/R600/AMDILCFGStructurizer.cpp
@@ -1233,7 +1233,7 @@
 
       numClonedBlock += Num;
       Num += serialPatternMatch(*HeadMBB->succ_begin());
-      Num += serialPatternMatch(*next(HeadMBB->succ_begin()));
+      Num += serialPatternMatch(*llvm::next(HeadMBB->succ_begin()));
       Num += ifPatternMatch(HeadMBB);
       assert(Num > 0);
 
@@ -1713,7 +1713,7 @@
   if (MBB->succ_size() != 2)
     return;
   MachineBasicBlock *MBB1 = *MBB->succ_begin();
-  MachineBasicBlock *MBB2 = *next(MBB->succ_begin());
+  MachineBasicBlock *MBB2 = *llvm::next(MBB->succ_begin());
   if (MBB1 != MBB2)
     return;