[Issue 12470] std.array.replace does not work with inout(char)[]

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=12470

--- Comment #5 from Andrej Mitrovic <andrej.mitrovich at gmail.com> ---
It seems the bottom-line problem is this:

-----
import std.array;
import std.range;

inout(char)[] sanitize(inout(char)[] input)
{
    auto app = appender!(inout(char)[])();

    // fails because of inout(char) as the element type
    static assert(isOutputRange!(typeof(app), inout(char)));
}
-----

And it fails because of this strange nested declaration inside of the put
method:

@property ref E[] EArrayInit(); //@@@9186@@@: Can't use (E[]).init

std\range.d(656): Error: inout on return means inout must be on a parameter as
well for @property ref inout(char)[]()

I guess this was some kind of funky workaround, but it causes issues for 12470.
I'm not sure how to proceed yet.

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