Fix issues with HMPP

1. Use the atomicfu root MPP module dependency, 'atomicfu-native'
2. Enable compatibility metadata variant publishing for consumers without HMPP
3. Enable Gradle module metadata needed for HMPP to resolve dependencies properly

Author: h0tk3y

gradle.properties

@@ -51,4 +51,5 @@ jekyll_version=4.0
 # TODO: Remove once KT-37187 is fixed
 org.gradle.jvmargs=-Xmx2g
 
-kotlin.mpp.enableGranularSourceSetsMetadata=true
+kotlin.mpp.enableGranularSourceSetsMetadata=true
+kotlin.mpp.enableCompatibilityMetadataVariant=true

kotlinx-coroutines-core/build.gradle

@@ -60,7 +60,7 @@ kotlin {
             dependencies {
                 // todo: we should not need it
                 // todo: it must be compileOnly or JVM is spoiled !!!
-                implementation "org.jetbrains.kotlinx:atomicfu-common:$atomicfu_version"
+                implementation "org.jetbrains.kotlinx:atomicfu-native:$atomicfu_version"
             }
         }
     }