Cleanup in idea plugin modules, misc

idea/idea-test-framework/src/org/jetbrains/kotlin/idea/test/KotlinLightCodeInsightFixtureTestCase.kt

@@ -53,7 +53,7 @@ public abstract class KotlinLightCodeInsightFixtureTestCase : LightCodeInsightFi
         kotlinInternalModeOriginalValue = KotlinInternalMode.enabled
         KotlinInternalMode.enabled = true
 
-        getProject().getComponent(javaClass<EditorTracker>())?.projectOpened()
+        getProject().getComponent(EditorTracker::class.java)?.projectOpened()
 
         invalidateLibraryCache(project)
 

idea/idea-test-framework/src/org/jetbrains/kotlin/idea/test/KotlinMultiFileTestCase.kt

@@ -30,7 +30,7 @@ public abstract class KotlinMultiFileTestCase : MultiFileTestCase() {
             val offset = text.indexOf("<caret>")
 
             if (offset >= 0) {
-                text.delete(offset, offset + "<caret>".length())
+                text.delete(offset, offset + "<caret>".length)
                 doc.setText(text.toString())
             }
 

idea/idea-test-framework/src/org/jetbrains/kotlin/idea/test/testUtils.kt

@@ -96,7 +96,7 @@ public fun unInvalidateBuiltinsAndStdLib(project: Project, runnable: RunnableWit
 
     // Base tearDown() invalidates builtins and std-lib files. Restore them with brute force.
     fun unInvalidateFile(file: PsiFileImpl) {
-        val field = javaClass<PsiFileImpl>().getDeclaredField("myInvalidated")!!
+        val field = PsiFileImpl::class.java.getDeclaredField("myInvalidated")!!
         field.setAccessible(true)
         field.set(file, false)
     }