Fix Phobos dependencies on autodecoding

[Daniel Kozak]

On Tue, Aug 13, 2019 at 9:35 AM a11e99z via Digitalmars-d
<digitalmars-d at puremagic.com> wrote:
>
> imo autodecoding is one of right thing.
> maybe will be better to leave it as is and just to add
> > immutable(ubyte)[] bytes( string str ) @nogc nothrow {
> >     return *cast( immutable(ubyte)[]* )&str;
> > }
> and use it as
> > foreach( b; "Привет, Мир!".bytes) // Hello world in RU
> >     writefln( "%x", b );          // 21 bytes, 12 runes
> ?
>
> why u decide to fight with autodecoding?
>

I hate autodecoding for many reason, one of them it is not done right:

https://run.dlang.io/is/IHECPf

```
import std.stdio;
void main()
{
    string strd = "é🜢🜢࠷❻𐝃";
    size_t cnt;
    foreach(i, wchar c; strd)
    {
        write(i);
    }

    writeln("");
    foreach(i, char c; strd)
    {
        write(i);
    }
    writeln("");
    foreach(i, dchar c; strd)
    {
        write(i);
    }
}
```