[Issue 16208] moduleinfo importedModules contains needless duplicates

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=16208

--- Comment #3 from Steven Schveighoffer <schveiguy at yahoo.com> ---
Hm... any program has this problem.

Example:

import std.stdio;

void main()
{
    foreach(mi; ModuleInfo)
    {
        writeln("In module ", mi.name, " we import:");
        foreach(imported; mi.importedModules)
            writeln(imported.name);
    }
}

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