Update K/N targets in accordance with official recommendations

More tier 3 targets added

Fixes #3601
Fixes #812
Fixes #855

Author: qwwdfsad

README.md

@@ -187,8 +187,8 @@ Kotlin/JS version of `kotlinx.coroutines` is published as
 
 Kotlin/Native version of `kotlinx.coroutines` is published as 
 [`kotlinx-coroutines-core-$platform`](https://mvnrepository.com/search?q=kotlinx-coroutines-core-) where `$platform` is 
-the target Kotlin/Native platform. [List of currently supported targets](https://github.com/Kotlin/kotlinx.coroutines/blob/master/gradle/compile-native-multiplatform.gradle#L16).
-
+the target Kotlin/Native platform. 
+Targets are provided in accordance with [official K/N target support](https://kotlinlang.org/docs/native-target-support.html).
 ## Building and Contributing
 
 See [Contributing Guidelines](CONTRIBUTING.md).

gradle/compile-native-multiplatform.gradle

@@ -15,22 +15,36 @@ kotlin {
     }
 
     targets {
+        // According to https://kotlinlang.org/docs/native-target-support.html
+        // Tier 1
         addTarget(presets.linuxX64)
-        addTarget(presets.iosArm64)
-        addTarget(presets.iosArm32)
-        addTarget(presets.iosX64)
         addTarget(presets.macosX64)
-        addTarget(presets.mingwX64)
-        addTarget(presets.tvosArm64)
-        addTarget(presets.tvosX64)
-        addTarget(presets.watchosArm32)
-        addTarget(presets.watchosArm64)
-        addTarget(presets.watchosX86)
-        addTarget(presets.watchosX64)
+        addTarget(presets.macosArm64)
         addTarget(presets.iosSimulatorArm64)
+        addTarget(presets.iosX64)
+
+        // Tier 2
+        addTarget(presets.linuxArm64)
         addTarget(presets.watchosSimulatorArm64)
+        addTarget(presets.watchosX64)
+        addTarget(presets.watchosArm32)
+        addTarget(presets.watchosArm64)
         addTarget(presets.tvosSimulatorArm64)
-        addTarget(presets.macosArm64)
+        addTarget(presets.tvosX64)
+        addTarget(presets.tvosArm64)
+        addTarget(presets.iosArm64)
+
+        // Tier 3
+        addTarget(presets.androidNativeArm32)
+        addTarget(presets.androidNativeArm64)
+        addTarget(presets.androidNativeX86)
+        addTarget(presets.androidNativeX64)
+        addTarget(presets.mingwX64)
+        addTarget(presets.watchosDeviceArm64)
+
+        // Deprecated, but were provided by coroutine; can be removed only when K/N drops the target
+        addTarget(presets.iosArm32)
+        addTarget(presets.watchosX86)
     }
 
     sourceSets {