Merge DMD r294: bugzilla 2816 Sudden-death static assert is not... bugzilla 2816 Sudden-death static assert is not very useful. --- dmd/expression.h | 12 ++++++ dmd/staticassert.c | 10 +--- dmd/template.c | 108 ++++++++++++++++++++++++++++++++++++++++++++++++---- dmd/template.h | 2 + 4 files changed, 117 insertions(+), 15 deletions(-)

interface I {}
class A : I {}
class B : A {}

void main () {
    A a = new A;
    I i = a;

    assert(!cast(B)a);
    assert(!cast(B)i);
}