[Issue 19668] calling a function causes crash - frame pointer access error can be bypassed with typeof(this).init

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19668

--- Comment #1 from Ali Ak <ali.akhtarzada at gmail.com> ---
Actually you don't need a static func. This crashes:

struct S(alias fun) {
    auto call(Args...)(Args args) {
        return fun(args);
    }
}
auto construct(alias fun)() {
    auto a = S!fun.init; // 1
    return a;
}

void main() {
    int count = 0;
    auto func() { return count++; }

    auto s = construct!func;

    s.call(); // crashes
}

And if you change @1 to "auto a = S!fun();" then all is well.

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