[Issue 24482] Recursive alias out of order fails to compile with a misleading error message.

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=24482

basile-z <b2.temp at gmx.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |b2.temp at gmx.com
           Hardware|x86_64                      |All
                 OS|Linux                       |All

--- Comment #1 from basile-z <b2.temp at gmx.com> ---
slightly minimized

```
struct Array(E) {}
struct Enum(T) {T t;} // <-- here T size is not known yet
alias NodeArray = Array!(Enum!(Object));
struct Object {NodeArray values;}    
```

IMO the error message is correct, for example

```
struct Array(E) {}
struct Enum(T) {T t;}
alias NodeArray = Array!(Enum!(Object*));
struct Object {NodeArray values;}    
```

compiles. However that's a typical case of "how forward references are handled
in D" is under-specified.

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