core/kotlinx-coroutines-core/resources/META-INF/proguard/coroutines.pro

# ServiceLoader support
-keepnames class kotlinx.coroutines.internal.MainDispatcherFactory {}
-keepnames class kotlinx.coroutines.CoroutineExceptionHandler {}

# Most of volatile fields are updated with AFU and should not be mangled
-keepclassmembernames class kotlinx.** {
    volatile <fields>;
}