[C++11] Updating getUsingDirectives to use iterator_range instead of a std::pair.

llvm-svn: 203239
diff --git a/clang/lib/AST/DeclBase.cpp b/clang/lib/AST/DeclBase.cpp
index 00692df..2c4df11 100644
--- a/clang/lib/AST/DeclBase.cpp
+++ b/clang/lib/AST/DeclBase.cpp
@@ -1528,12 +1528,12 @@
 
 /// Returns iterator range [First, Last) of UsingDirectiveDecls stored within
 /// this context.
-DeclContext::udir_iterator_range
+DeclContext::udir_range
 DeclContext::getUsingDirectives() const {
   // FIXME: Use something more efficient than normal lookup for using
   // directives. In C++, using directives are looked up more than anything else.
   lookup_const_result Result = lookup(UsingDirectiveDecl::getName());
-  return udir_iterator_range(reinterpret_cast<udir_iterator>(Result.begin()),
+  return udir_range(reinterpret_cast<udir_iterator>(Result.begin()),
                              reinterpret_cast<udir_iterator>(Result.end()));
 }