Move coroutines to kotlin.coroutines package: stdlib

Copy everything from kotlin.coroutines.experimental to
kotlin.coroutines. The latter is separate source set to be packed into
separate kotlin-stdlib-coroutines.jar
 #KT-23362

libraries/stdlib/jvm/build.gradle

@@ -34,6 +34,14 @@ sourceSets {
             srcDir "../experimental"
         }
     }
+    coroutines {
+        kotlin {
+            srcDir '../coroutines/jvm/src'
+            srcDir '../coroutines/common/src'
+            srcDir '../coroutines/src'
+        }
+        compileClasspath += sourceSets.main.output
+    }
     test {
         kotlin {
             srcDir 'test'
@@ -80,6 +88,14 @@ task distJar(type: Jar) {
     // from sourceSets.java9.output
 }
 
+task coroutinesJar(type: Jar) {
+    baseName = 'kotlin-stdlib-coroutines'
+    version = null
+    manifestAttributes(manifest, project, 'Main', true)
+    project.configure(manifest) { attributes 'Kotlin-Version': '1.3' }
+    from("${rootDir}/dist/builtins")
+    from sourceSets.coroutines.output
+}
 
 sourcesJar {
     from "${rootDir}/core/builtins/native"
@@ -121,6 +137,13 @@ dist {
     }
 }
 
+task coroutinesDist(type: Copy) {
+    from coroutinesJar
+    into distDir
+}
+
+dist.dependsOn coroutinesDist
+
 task dexMethodCount(type: DexMethodCount) {
     from jar
     ownPackages = ['kotlin']
@@ -159,4 +182,18 @@ compileExperimentalKotlin {
 
 compileJava9Sources(project, 'kotlin.stdlib')
 
+compileCoroutinesKotlin {
+    kotlinOptions {
+        languageVersion = "1.3"
+        apiVersion = "1.3"
+        freeCompilerArgs = [
+                "-version",
+                "-Xallow-kotlin-package",
+                "-Xmultifile-parts-inherit",
+                "-Xdump-declarations-to=${buildDir}/stdlib-coroutines-declarations.json",
+                "-module-name", "kotlin-stdlib-coroutines"
+        ]
+    }
+}
+
 kotlin.experimental.coroutines 'enable'