namespace UsingDecl :conflicting_hidden_using_decl;
using X::conflicting_hidden_using_decl_fn;
using X::conflicting_hidden_using_decl_var;
using X::conflicting_hidden_using_decl_struct;
int ;
int conflicting_hidden_using_decl_var_2;
;
using X::conflicting_hidden_using_decl_mixed_1;
using X::conflicting_hidden_using_decl_mixed_2;
using X::conflicting_hidden_using_decl_mixed_3;
int conflicting_hidden_using_decl_mixed_4;
int ;
;
namespace UsingDecl
namespace X
using X: