[C++11] Replacing Scope iterators decl_begin() and decl_end() with iterator_range decls(). Updating all of the usages of the iterators with range-based for loops, and removing the no-longer-needed iterator versions.

llvm-svn: 204052
diff --git a/clang/lib/Sema/SemaCodeComplete.cpp b/clang/lib/Sema/SemaCodeComplete.cpp
index fe32382..d44c04b 100644
--- a/clang/lib/Sema/SemaCodeComplete.cpp
+++ b/clang/lib/Sema/SemaCodeComplete.cpp
@@ -4335,9 +4335,8 @@
   
   // Look for other capturable variables.
   for (; S && !isNamespaceScope(S); S = S->getParent()) {
-    for (Scope::decl_iterator D = S->decl_begin(), DEnd = S->decl_end();
-         D != DEnd; ++D) {
-      VarDecl *Var = dyn_cast<VarDecl>(*D);
+    for (const auto *D : S->decls()) {
+      const auto *Var = dyn_cast<VarDecl>(D);
       if (!Var ||
           !Var->hasLocalStorage() ||
           Var->hasAttr<BlocksAttr>())