[Issue 24216] All symbols from object are publicly imported into every module

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=24216

--- Comment #2 from Steven Schveighoffer <schveiguy at gmail.com> ---
Please post examples to confirm.

I tried this, and it compiles, so it's not just types:

```d
import std.math;

void main()
{
    int[int] x;
    std.math.require(x, 5) = 6;
}
```

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