[Refactor] Rename LoopAnnotator to ScopAnnotator

  The LoopAnnotator doesn't annotate only loops any more, thus it is
  called ScopAnnotator from now on.

  This also removes unnecessary polly:: namespace tags.

llvm-svn: 218878
diff --git a/polly/lib/CodeGen/LoopGenerators.cpp b/polly/lib/CodeGen/LoopGenerators.cpp
index 1ec9fb8..efdbeee 100644
--- a/polly/lib/CodeGen/LoopGenerators.cpp
+++ b/polly/lib/CodeGen/LoopGenerators.cpp
@@ -48,7 +48,7 @@
                          PollyIRBuilder &Builder, Pass *P, LoopInfo &LI,
                          DominatorTree &DT, BasicBlock *&ExitBB,
                          ICmpInst::Predicate Predicate,
-                         LoopAnnotator *Annotator, bool Parallel,
+                         ScopAnnotator *Annotator, bool Parallel,
                          bool UseGuard) {
   Function *F = Builder.GetInsertBlock()->getParent();
   LLVMContext &Context = F->getContext();