[Issue 7619] Broken deprecated feature with template function

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=7619

--- Comment #5 from moonlightsentinel at disroot.org ---
dmd-nightly on run.dlan.io produces:

onlineapp.d(3): Deprecation: struct onlineapp.S is deprecated

It still issues a warning that S is deprecated while instantiating foo in a
deprecated context (and hence fails to compile with -de).

This is a blocking issue when compiling phobos unittests with
"-checkaction=context"[1] as it instantiates templates with cfloat, ...

[1] https://github.com/dlang/phobos/pull/7252

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