diff --git a/gradle.properties b/gradle.properties
index dc6d76a256d..7c5b2429c69 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -19,8 +19,8 @@ buildKotlinVersion=1.3-M1-eap-77
 buildKotlinCompilerRepo=https://teamcity.jetbrains.com/guestAuth/app/rest/builds/buildType:(id:Kotlin_13M1_Compiler),number:1.3-M1-eap-77,branch:default:any/artifacts/content/maven
 remoteRoot=konan_tests
 testDataVersion=1226829:id
-kotlinCompilerRepo=https://teamcity.jetbrains.com/guestAuth/app/rest/builds/buildType:(id:Kotlin_13M2_CompilerAllPlugins),number:1.3-M2-eap-82,tag:kotlin-native,pinned:true/artifacts/content/maven
-kotlinVersion=1.3-M2-eap-82
+kotlinCompilerRepo=https://teamcity.jetbrains.com/guestAuth/app/rest/builds/buildType:(id:Kotlin_13M2_CompilerAllPlugins),number:1.3-M2-eap-105,tag:kotlin-native,pinned:true/artifacts/content/maven
+kotlinVersion=1.3-M2-eap-105
 testKotlinVersion=1.3-M2-eap-33
 konanVersion=0.9
 org.gradle.jvmargs='-Dfile.encoding=UTF-8'
diff --git a/runtime/src/main/kotlin/kotlin/collections/Arrays.kt b/runtime/src/main/kotlin/kotlin/collections/Arrays.kt
index 76a03b88518..68405b0907d 100644
--- a/runtime/src/main/kotlin/kotlin/collections/Arrays.kt
+++ b/runtime/src/main/kotlin/kotlin/collections/Arrays.kt
@@ -514,94 +514,6 @@ public actual fun LongArray.contentToString(): String {
     }
 }
 
-/**
- * Returns a string representation of the contents of the specified array as if it is [List].
- */
-@SinceKotlin("1.3")
-@ExperimentalUnsignedTypes
-public fun UByteArray.contentToString(): String {
-    if (size == 0)
-        return "[]"
-    val iMax = size - 1
-
-    val b = StringBuilder()
-    b.append('[')
-    var i = 0
-    while (true) {
-        b.append(this[i])
-        if (i == iMax)
-            return b.append(']').toString()
-        b.append(", ")
-        i++
-    }
-}
-
-/**
- * Returns a string representation of the contents of the specified array as if it is [List].
- */
-@SinceKotlin("1.3")
-@ExperimentalUnsignedTypes
-public fun UShortArray.contentToString(): String {
-    if (size == 0)
-        return "[]"
-    val iMax = size - 1
-
-    val b = StringBuilder()
-    b.append('[')
-    var i = 0
-    while (true) {
-        b.append(this[i])
-        if (i == iMax)
-            return b.append(']').toString()
-        b.append(", ")
-        i++
-    }
-}
-
-/**
- * Returns a string representation of the contents of the specified array as if it is [List].
- */
-@SinceKotlin("1.3")
-@ExperimentalUnsignedTypes
-public fun UIntArray.contentToString(): String {
-    if (size == 0)
-        return "[]"
-    val iMax = size - 1
-
-    val b = StringBuilder()
-    b.append('[')
-    var i = 0
-    while (true) {
-        b.append(this[i])
-        if (i == iMax)
-            return b.append(']').toString()
-        b.append(", ")
-        i++
-    }
-}
-
-/**
- * Returns a string representation of the contents of the specified array as if it is [List].
- */
-@SinceKotlin("1.3")
-@ExperimentalUnsignedTypes
-public fun ULongArray.contentToString(): String {
-    if (size == 0)
-        return "[]"
-    val iMax = size - 1
-
-    val b = StringBuilder()
-    b.append('[')
-    var i = 0
-    while (true) {
-        b.append(this[i])
-        if (i == iMax)
-            return b.append(']').toString()
-        b.append(", ")
-        i++
-    }
-}
-
 /**
  * Returns a string representation of the contents of the specified array as if it is [List].
  */
@@ -1060,54 +972,6 @@ public actual fun LongArray.contentHashCode(): Int {
     return result
 }
 
-/**
- * Returns a hash code based on the contents of this array as if it is [List].
- */
-@SinceKotlin("1.3")
-@ExperimentalUnsignedTypes
-public fun UByteArray.contentHashCode(): Int {
-    var result = 1
-    for (element in this)
-        result = 31 * result  + element.hashCode()
-    return result
-}
-
-/**
- * Returns a hash code based on the contents of this array as if it is [List].
- */
-@SinceKotlin("1.3")
-@ExperimentalUnsignedTypes
-public fun UShortArray.contentHashCode(): Int {
-    var result = 1
-    for (element in this)
-        result = 31 * result  + element.hashCode()
-    return result
-}
-
-/**
- * Returns a hash code based on the contents of this array as if it is [List].
- */
-@SinceKotlin("1.3")
-@ExperimentalUnsignedTypes
-public fun UIntArray.contentHashCode(): Int {
-    var result = 1
-    for (element in this)
-        result = 31 * result  + element.hashCode()
-    return result
-}
-
-/**
- * Returns a hash code based on the contents of this array as if it is [List].
- */
-@SinceKotlin("1.3")
-@ExperimentalUnsignedTypes
-public fun ULongArray.contentHashCode(): Int {
-    var result = 1
-    for (element in this)
-        result = 31 * result  + element.hashCode()
-    return result
-}
-
 /**
  * Returns a hash code based on the contents of this array as if it is [List].
  */
diff --git a/runtime/src/main/kotlin/kotlin/coroutines/ContinuationImpl.kt b/runtime/src/main/kotlin/kotlin/coroutines/ContinuationImpl.kt
index 60234c47924..9d294df3c4e 100644
--- a/runtime/src/main/kotlin/kotlin/coroutines/ContinuationImpl.kt
+++ b/runtime/src/main/kotlin/kotlin/coroutines/ContinuationImpl.kt
@@ -18,6 +18,7 @@ package kotlin.coroutines.native.internal
 
 import kotlin.coroutines.*
 import kotlin.coroutines.intrinsics.CoroutineSingletons
+import kotlin.coroutines.intrinsics.*
 
 @SinceKotlin("1.3")
 internal abstract class BaseContinuationImpl(
@@ -38,7 +39,7 @@ internal abstract class BaseContinuationImpl(
                 val outcome: SuccessOrFailure<Any?> =
                     try {
                         val outcome = invokeSuspend(param)
-                        if (outcome === CoroutineSingletons.COROUTINE_SUSPENDED) return
+                        if (outcome === COROUTINE_SUSPENDED) return
                         SuccessOrFailure.success(outcome)
                     } catch (exception: Throwable) {
                         SuccessOrFailure.failure(exception)
diff --git a/runtime/src/main/kotlin/kotlin/coroutines/SafeContinuationNative.kt b/runtime/src/main/kotlin/kotlin/coroutines/SafeContinuationNative.kt
index 876c95a550a..4896f67c614 100644
--- a/runtime/src/main/kotlin/kotlin/coroutines/SafeContinuationNative.kt
+++ b/runtime/src/main/kotlin/kotlin/coroutines/SafeContinuationNative.kt
@@ -18,6 +18,7 @@ package kotlin.coroutines
 
 import kotlin.*
 import kotlin.coroutines.intrinsics.CoroutineSingletons.*
+import kotlin.coroutines.intrinsics.*
 
 @PublishedApi
 @SinceKotlin("1.3")
diff --git a/runtime/src/main/kotlin/kotlin/coroutines/experimental/Intrinsics.kt b/runtime/src/main/kotlin/kotlin/coroutines/experimental/Intrinsics.kt
index 76ae89ac29c..bf994fdd9dd 100644
--- a/runtime/src/main/kotlin/kotlin/coroutines/experimental/Intrinsics.kt
+++ b/runtime/src/main/kotlin/kotlin/coroutines/experimental/Intrinsics.kt
@@ -82,7 +82,14 @@ public actual inline fun <R, T> (suspend R.() -> T).startCoroutineUninterceptedO
  * the execution was suspended and will not return any result immediately.
  */
 @SinceKotlin("1.1")
-public actual val COROUTINE_SUSPENDED: Any get() = errorExperimentalCoroutinesAreNoLongerSupported()
+public actual val COROUTINE_SUSPENDED: Any get() = CoroutineSingletons.COROUTINE_SUSPENDED
+
+// Using enum here ensures two important properties:
+//  1. It makes SafeContinuation serializable with all kinds of serialization frameworks (since all of them natively support enums)
+//  2. It improves debugging experience, since you clearly see toString() value of those objects and what package they come from
+private enum class CoroutineSingletons {
+    COROUTINE_SUSPENDED
+}
 
 @PublishedApi
 internal fun errorExperimentalCoroutinesAreNoLongerSupported(): Nothing =
diff --git a/runtime/src/main/kotlin/kotlin/text/StringNumberConversions.kt b/runtime/src/main/kotlin/kotlin/text/StringNumberConversions.kt
index bc5d7416e30..42d9160f9d1 100644
--- a/runtime/src/main/kotlin/kotlin/text/StringNumberConversions.kt
+++ b/runtime/src/main/kotlin/kotlin/text/StringNumberConversions.kt
@@ -160,3 +160,5 @@ public actual fun String.toDoubleOrNull(): Double? {
         return null
     }
 }
+
+internal fun numberFormatError(input: String): Nothing = throw NumberFormatException("Invalid number format: '$input'")
\ No newline at end of file