[Issue 20211] should be set appropriate version for enabled DIPs (in command lines)

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20211

--- Comment #1 from anonymous4 <dfj1esp02 at sneakemail.com> ---
Try this:

template A()
{
int[] f(scope int[] a) @safe
{
    return a;
}
}

static assert(!__traits(compiles,A!()));

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