Use a single coroutinesState instead. Change the coroutines state in
some tests from "warn" to "enable"/"error" to test that deserialization
of older config files works ("warn" is the default value, so it wasn't
testing anything here)
The <Type>Array.iterator used to lack next<Type>() method (KT-16626).
The -Xtypedarray compiler key enables translation of primitive arrays
to TypedArrays, and primitive array`is`-checks (KT-15358, KT-14007,
KT-14614, KT-16056).
Use "-Xno-check-impl" to suppress checking whether the platform declaration
implementation has the "impl" modifier.
Do not check presence of fake overrides from platform class in the impl class,
otherwise there would be a lot of errors about the fact that
equals/hashCode/toString are not marked with the "impl" modifier
Alexander Udalov