Frits van Bommel e7b3f5415f 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);
    }
}
}}}

2009-05-25 12:50:40 +02:00

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