Add :noinline to prevent inlining. Fixes #9212

[timholy]

No description provided.

[timholy]

Even with this, on the first execution one can, for certain functions, receive multiple warnings. This happens because there seems to be some form of automatic loop unrolling active when the number of iterations is known at compile time. Consequently, within a single function (and corresponding to a single source line), the pointer address of the caller may exhibit multiple values.

Still, it's much better than it used to be.

[vtjnash]

💯

[timholy]

Do you want a @noinline macro as well? I wasn't sure there were use cases outside of this one, so I just implemented the expression support.

[rfourquet]

At one point, I issued a PR whose sole purpose was to wrap an @inlined function only so that it's not inlined, which was greatly improving performances on my machine, so I think that @noinline can be justified (and also at the call site).

[timholy]

OK, good enough for me---added.

Once this turns green, I'll merge.