Minor: use special extension

idea/idea-gradle/tests/org/jetbrains/kotlin/idea/codeInsight/gradle/GradleConfiguratorTest.kt

@@ -60,7 +60,7 @@ class GradleConfiguratorTest : GradleImportingTestCase() {
                 myProject.baseDir.createChildData(null, "build.gradle")
 
                 val module = ModuleManager.getInstance(myProject).findModuleByName("app")!!
-                val moduleGroup = ModuleSourceRootMap(myProject).toModuleGroup(module)
+                val moduleGroup = module.toModuleGroup()
                 // We have a Kotlin runtime in build.gradle but not in the classpath, so it doesn't make sense
                 // to suggest configuring it
                 assertEquals(ConfigureKotlinStatus.BROKEN, findGradleModuleConfigurator().getStatus(moduleGroup))

idea/src/org/jetbrains/kotlin/idea/configuration/ConfigureKotlinInProjectUtils.kt

@@ -140,7 +140,7 @@ fun getConfigurableModulesWithKotlinFiles(project: Project): List<ModuleSourceRo
 }
 
 fun showConfigureKotlinNotificationIfNeeded(module: Module) {
-    val moduleGroup = ModuleSourceRootMap(module.project).toModuleGroup(module)
+    val moduleGroup = module.toModuleGroup()
     if (isNotConfiguredNotificationRequired(moduleGroup)) return
 
     ConfigureKotlinNotificationManager.notify(module.project)