Minor, inline unneeded JvmDependenciesIndexFactory

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/KotlinCoreEnvironment.kt

@@ -203,13 +203,14 @@ class KotlinCoreEnvironment private constructor(
             )
         }
 
-        // REPL and kapt2 update classpath dynamically
-        val indexFactory = JvmUpdateableDependenciesIndexFactory()
-
         val (roots, singleJavaFileRoots) =
                 initialRoots.partition { (file) -> file.isDirectory || file.extension != JavaFileType.DEFAULT_EXTENSION }
-        rootsIndex = indexFactory.makeIndexFor(roots)
-        updateClasspathFromRootsIndex(rootsIndex)
+
+        // REPL and kapt2 update classpath dynamically
+        rootsIndex = JvmDependenciesDynamicCompoundIndex().apply {
+            addIndex(JvmDependenciesIndexImpl(roots))
+            updateClasspathFromRootsIndex(this)
+        }
 
         (ServiceManager.getService(project, CoreJavaFileManager::class.java) as KotlinCliJavaFileManagerImpl).initialize(
                 rootsIndex,

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/index/JvmDependenciesIndex.kt

@@ -48,13 +48,3 @@ data class JavaRoot(val file: VirtualFile, val type: RootType, val prefixFqName:
         val SourceAndBinary: Set<RootType> = EnumSet.of(RootType.BINARY, RootType.SOURCE)
     }
 }
-
-interface JvmDependenciesIndexFactory<out T : JvmDependenciesIndex> {
-    fun makeIndexFor(roots: List<JavaRoot>): T
-}
-
-class JvmUpdateableDependenciesIndexFactory : JvmDependenciesIndexFactory<JvmDependenciesDynamicCompoundIndex> {
-    override fun makeIndexFor(roots: List<JavaRoot>) = JvmDependenciesDynamicCompoundIndex().apply {
-        addIndex(JvmDependenciesIndexImpl(roots))
-    }
-}