[Issue 13738] RTInfo generation on deprecated struct causes deprecation message

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13738

--- Comment #4 from Kenji Hara <k.hara.pg at gmail.com> ---
I think the root of diagnostic problem is issue 14875.
If a template is instantiated with deprecated type, the touch to corresponding
type parameter should not repeat redundant deprecation messages.

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