Update code after new MM (#209)

* remove SharedImmutable annotations
* rewrite IntMap to not use atomics on native
* remove synchronization from IntMap code at all, and move it to StreamsStorage
* remove expect/actual from FrameHandler
* drop TrackingSet and move set directly to buffer poll

Author: olme04

rsocket-core/src/commonMain/kotlin/io/rsocket/kotlin/RequestStrategy.kt

@@ -19,9 +19,7 @@ package io.rsocket.kotlin
 import kotlinx.atomicfu.*
 import kotlinx.coroutines.channels.*
 import kotlin.coroutines.*
-import kotlin.native.concurrent.*
 
-@SharedImmutable
 @ExperimentalStreamsApi
 private val DefaultStrategy: RequestStrategy = PrefetchStrategy(64, 16)
 

rsocket-core/src/commonMain/kotlin/io/rsocket/kotlin/frame/io/Dump.kt

@@ -18,15 +18,11 @@ package io.rsocket.kotlin.frame.io
 
 import io.ktor.utils.io.core.*
 import io.rsocket.kotlin.payload.*
-import kotlin.native.concurrent.*
 
-@SharedImmutable
 private val digits = "0123456789abcdef".toCharArray()
 
-@SharedImmutable
 private const val divider = "+--------+-------------------------------------------------+----------------+"
 
-@SharedImmutable
 private const val header = """
          +-------------------------------------------------+
          |  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f |

rsocket-core/src/commonMain/kotlin/io/rsocket/kotlin/internal/CloseOperations.kt

@@ -18,7 +18,6 @@ package io.rsocket.kotlin.internal
 
 import io.ktor.utils.io.core.*
 import kotlinx.coroutines.channels.*
-import kotlin.native.concurrent.*
 
 internal inline fun <T : Closeable, R> T.closeOnError(block: (T) -> R): R {
     try {
@@ -29,7 +28,6 @@ internal inline fun <T : Closeable, R> T.closeOnError(block: (T) -> R): R {
     }
 }
 
-@SharedImmutable
 private val onUndeliveredCloseable: (Closeable) -> Unit = Closeable::close
 
 @Suppress("FunctionName")