So `__traits(getOverloads)` returns also templated members and
`__traits(isTemplate)` can select those members. Unfortunately,
`Parameters!` does not work with the templated member. How can I
pass a symbol of T or A... to `Parameters!` as desired type
without instantiating the template?
```d
fun(T, A...)(T arg, string foo, int bar, A args); // some overload
```
Assuming T is just an `int`, I cannot apply this type. The
compiler is forgetting the actual overload:
```d
template getParams(alias overload) {
static if (__traits(isTemplate, overload)) {
alias typed = overload!int // error: fun(...) matches more
than one template declaration
alias getParams = Parameters!typed;
}
}
```
