[Issue 15027] cannot pass arguments of type DirEntry to std.file functions

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15027

--- Comment #11 from Martin Nowak <code at dawg.eu> ---
Slight variation of the bug where the aliased string is an lvalue, but cannot
be assigned.

cat > bug.d << CODE
struct InternedString
{
    void opAssign(InternedString other)
    {
        this.data = other.data;
    }

    string data;
    alias data this;
}

auto bug(InternedString s)
{
    import std.file : exists;
    return exists(s);
}
CODE

This breaks b/c some code in utf.d tries to `r = r[1 .. $]` slice an
InternedString.

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