Add -Xuse-old-class-files-reading CLI argument

By default we use the fast implementation in CLI compiler,
but in the most of the tests the old one is enabled

Also add tests on CompiledJava with the fast class reading
implementation

compiler/tests/org/jetbrains/kotlin/cli/jvm/KotlinCliJavaFileManagerTest.kt

@@ -200,7 +200,10 @@ class KotlinCliJavaFileManagerTest : KotlinTestWithEnvironment() {
         val coreJavaFileManager = ServiceManager.getService(project, CoreJavaFileManager::class.java) as KotlinCliJavaFileManagerImpl
 
         val root = environment.contentRootToVirtualFile(JavaSourceRoot(javaFilesDir!!, null))!!
-        coreJavaFileManager.initIndex(JvmDependenciesIndexImpl(listOf(JavaRoot(root, JavaRoot.RootType.SOURCE))))
+        coreJavaFileManager.initialize(
+                JvmDependenciesIndexImpl(listOf(JavaRoot(root, JavaRoot.RootType.SOURCE))),
+                useFastClassFilesReading = true
+        )
 
         return coreJavaFileManager
     }