[Issue 23598] Another nasty forward reference bug

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23598

--- Comment #5 from Walter Bright <bugzilla at digitalmars.com> ---
I suspect that when the sort template is instantiated, it is too eager to
evaluate its arguments. It should just go as far as seeing String is a struct,
and not attempt to semantic its contents.

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