Merge DMD r304: refactor invariant => immutable --- dmd/cast.c | 2 +- dmd/declaration.c | 2 +- dmd/declaration.h | 3 +-- dmd/doc.c | 2 +- dmd/expression.c | 6 +++--- dmd/interpret.c | 4 ++-- dmd/mtype.c | 2 +- dmd/mtype.h | 2 +- dmd/parse.c | 4 ++-- dmd/struct.c | 2 +- 10 files changed, 14 insertions(+), 15 deletions(-)

class C
{
    int c;
    long f(long l)
    {
        return l;
    }
}

class D : C
{
    int d;
    override long f(long l)
    {
        return l*2;
    }
}

void main()
{
    scope c = new C;
    assert(c.f(25L) == 25);
    scope d = new D;
    assert(d.f(25L) == 50);
    C cd = d;
    assert(cd.f(25L) == 50);
    assert(func(d,25L) == 50);
}

long func(C c, long l)
{
    return c.f(l);
}