Make "`aa[key]`" use the same runtime call as "`key in aa`". The runtime calls these were using were different, but with equivalent definitions. With `ldc -O3`, the following functions now all compile to the exact same code: {{{ int[int] y; void foo(int x) { if (x in y) { auto z = x in y; sink(*z); } } void bar(int x) { if (x in y) { sink(y[x]); } } void baz(int x) { if (auto p = x in y) { sink(*p); } } }}}

extern(C) int printf(char*, ...);

long foo(ref int p) {
    try { return 0; }
    finally {
        p++;
        throw new Object;
    }
}

void main() {
    int p = 0;
    try {
        foo(p);
        assert(0);
    } catch {
    }
    printf("Number of types scope(exit) was executed : %d\n", p);
    assert(p == 1);
}