[Issue 15110] pragma(inline) rarely works how I want it to

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=15110

--- Comment #8 from Manu <turkeyman at gmail.com> ---
Right. I think `pragma(inline, true)` should express an AST inline in the
front-end, and fail whenever such inlining can't occur.

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