Index: cfe/trunk/include/clang/AST/ExternalASTSource.h
===================================================================
--- cfe/trunk/include/clang/AST/ExternalASTSource.h
+++ cfe/trunk/include/clang/AST/ExternalASTSource.h
@@ -503,8 +503,9 @@
   /// We define this as a wrapping iterator around an int. The
   /// iterator_adaptor_base class forwards the iterator methods to basic integer
   /// arithmetic.
-  class iterator : public llvm::iterator_adaptor_base<
-                       iterator, int, std::random_access_iterator_tag, T, int> {
+  class iterator
+      : public llvm::iterator_adaptor_base<
+            iterator, int, std::random_access_iterator_tag, T, int, T *, T &> {
     LazyVector *Self;
 
     iterator(LazyVector *Self, int Position)