I'm introspecting structs, and I ran into an issue where
`__traits(derivedMembers)` includes manifest constant enums in
the returned tuple.
What is the correct way to statically detect these? The immediate
thing that springs to mind is `is(symbol == enum)`, but it's not
it.
Currently I'm testing if a function that takes the address of the
member compiles, and I think it works, but like with everything
`__traits(compiles)` it strikes me as it might not be the right
way to go about things.
```d
struct Foo
{
int i;
enum k = 42;
}
void main()
{
foreach (memberstring; __traits(derivedMembers, Foo))
{
static if (__traits(compiles, { Foo f; auto ptr =
&__traits(getMember, f, memberstring); }))
{
// ...
}
}
}
```
What else can I try?
