[Issue 24559] Compiler fails to error about using enum type as a value when compiling with -o-

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=24559

Luís Ferreira <contact at lsferreira.net> changed:

           What    |Removed                     |Added
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                 CC|                            |contact at lsferreira.net

--- Comment #1 from Luís Ferreira <contact at lsferreira.net> ---
>From what I investigated, semantics gags the error and defer that to e2ir glue
code, hence it doesn't happen on `-o-`.

We have two possible options:
- We do the check for expressions with EXP.error after semantic3 and remove it
from e2ir visitor;
- Detect these situations when we encounter them. It seems expressionsem
assumes its a forward reference and goes on, which to me, shouldn't.

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