[Issue 18889] Hovering over the alias of an enum doesn't show it's value

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18889

--- Comment #3 from Rainer Schuetze <r.sagitario at gmx.de> ---
I have now added that with semantic highlighting enabled, tooltip requests are
no longer forwarded to the debugger if hovering a compile time identifier
(type/enum), thus showing the tooltip of the semenatic analyzer.

That should help in most cases, even without appropriate debug information.
Aliases as in your example are never anything that the debugger knows about
anyway, they don't make it into the compiler backend.

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