This assert fires, but this is wrong:


const struct Foo { int[] a; }
void main() {
    Foo f1 = Foo([1, 2]);
    Foo f2 = Foo([1] ~ 2);
    assert(f1 !is f2); // OK
    assert(f1 == f2); // AssertError
}


It's a source of bugs, like:


import std.stdio;
const struct Foo { int[] a; }
void main() {
    int[const Foo] aa;
    aa[Foo([1, 2])] = 1;
    aa[Foo([1] ~ [2])] = 2;
    writeln(aa);
}


[const(Foo)([1, 2]):1, const(Foo)([1, 2]):2]


Please fix this. I have set the "major" Severity (almost "Critical") because this causes some of the worst bugs I have had in single-threaded D code.