Build: Introduce Project extension properties for source sets

compiler/build.gradle.kts

@@ -113,7 +113,7 @@ jar.from("../idea/src") {
 projectTest {
     dependsOn(*testDistProjects.map { "$it:dist" }.toTypedArray())
     workingDir = rootDir
-    systemProperty("kotlin.test.script.classpath", javaPluginConvention().sourceSets.getByName("test").output.classesDirs.joinToString(File.pathSeparator))
+    systemProperty("kotlin.test.script.classpath", testSourceSet.output.classesDirs.joinToString(File.pathSeparator))
     doFirst {
         systemProperty("kotlin.ant.classpath", antLauncherJar.asPath)
         systemProperty("kotlin.ant.launcher.class", "org.apache.tools.ant.Main")

compiler/daemon/daemon-client/build.gradle.kts

@@ -35,7 +35,7 @@ sourceSets {
 noDefaultJar()
 
 runtimeJar(task<ShadowJar>("shadowJar")) {
-    from(javaPluginConvention().sourceSets.getByName("main").output)
+    from(mainSourceSet.output)
     fromEmbeddedComponents()
 }
 

compiler/daemon/daemon-client/build.gradle.kts.173

@@ -34,7 +34,7 @@ sourceSets {
 noDefaultJar()
 
 runtimeJar(task<ShadowJar>("shadowJar")) {
-    from(javaPluginConvention().sourceSets.getByName("main").output)
+    from(mainSourceSet.output)
     fromEmbeddedComponents()
 }
 

compiler/tests-java8/build.gradle.kts

@@ -27,7 +27,7 @@ projectTest {
     executable = "${rootProject.extra["JDK_18"]!!}/bin/java"
     dependsOn(":dist")
     workingDir = rootDir
-    systemProperty("kotlin.test.script.classpath", javaPluginConvention().sourceSets.getByName("test").output.classesDirs.joinToString(File.pathSeparator))
+    systemProperty("kotlin.test.script.classpath", testSourceSet.output.classesDirs.joinToString(File.pathSeparator))
     systemProperty("idea.home.path", intellijRootDir().canonicalPath)
 }