[basic.lookup.argdep]/5 Missing export in `apply(T t, U u)` ?

http://eel.is/c++draft/basic.lookup#argdep-5
in Translation unit #2

```cpp
template<typename T, typename U> void apply(T t, U u) {
  f(t, u);
  g(t);
}
```

need `export` here?
```cpp
export template<typename T, typename U> void apply(T t, U u) {
  f(t, u);
  g(t);
}
```
