text: namespace std {
    template<typename RandomAccessIterator>
    void sort(RandomAccessIterator first, RandomAccessIterator last);
    
    template<class X, class Y>
    X* dyn_cast(Y *Val);
  }
  
  void f() {
    std::  
    // RUN: clang-cc -fsyntax-only -code-completion-at=%s:10:8 %s -o - | FileCheck -check-prefix=CC1 %s
    // CHECK-CC1: dyn_cast<<#class X#>>(<#Y *Val#>)
    // CHECK-CC1: sort(<#RandomAccessIterator first#>, <#RandomAccessIterator last#>)
    
  