static const and user attribute

[Jack Applegame]

Which difference between enum and static const with initializer?
struct A {
    @("enum") enum int c1 = 10;
    @("const") static const int c2 = 20;
}

static assert(__traits(getAttributes, A.c1)[0] == "enum");
static assert(__traits(getAttributes, A.c2)[0] == "const"); // 
error

http://dpaste.dzfl.pl/7887ef90