// { dg-do run  }// Unqualified lookup should find all functions.// Duplicates are ignored as long as they lose during overload resolution.namespace A{  int f(){    return 1;  }  int f(double);}namespace B{  int f(int){    return 2;  }  int f(double);}int f(int,int){  return 3;}using namespace A;using namespace B;int main(){  if(f() != 1)    return 1;  if(f(1) != 2)    return 1;  if(f(0,0) != 3)    return 1;  return 0;}