[Issue 9785] dmd -inline should inline lambda delegates

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=9785

--- Comment #5 from hsteoh at quickfur.ath.cx ---
Huh, just re-read Walter's comment, and it suddenly struck me: inlining is
currently done in the front-end? Not in the optimizer? That strikes me as
rather odd, since isn't inlining usually the domain of the optimizer?

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