ServiceLoader is very, very expensive on Android, please just crash instead

[LouisCAD]

Hi, if you dig into kotlinx.coroutines issues about ServiceLoader, you will see it's unfortunately very expensive on Android. Probably best to stick to build-time only behavior, or implement a custom, cheaper and R8 safe way to do what ServiceLoader does.

[whyoleg]

Hey! yeah, that's unfortunate and would be nice to have. As far as I understand, R8 can transform specific calls in a form of:
ServiceLoader.load(X.class, X.class.getClassLoader()).iterator() (source)
So probably it's doable. Would be nice to hear on how to better test it.

[whyoleg]

FYI, I was able to test and fix the performance of ServiceLoader on Android (for most cases I believe?)
I don't have real device at my side, but I do believe that there should be no difference