Add back pragma(inline, false) to fix vibe.d

[dkorpel]

#3870 (comment)

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Testing this PR locally

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[RazvanN7]

Doesn't seem to fix the issue.

[dkorpel]

I've put pragma(inline, false) inside the function again

[thewilsonator]

is this a DMD specific issue? LDC does not recognise pragma(inline, whatever); unless it is outside the function.

[dkorpel]

I think the problem is DMD's front-end inliner. This is a specially recognized function for CTFE, and inlining the body into another function makes DMD not recognize it anymore.

[RazvanN7]

Phobos seems to have a network failure on Freebsd. Please re-push this.