Cleanup: fix some compiler warnings (mostly deprecations, javaClass)

idea/idea-repl/src/org/jetbrains/kotlin/console/CommandExecutor.kt

@@ -48,7 +48,7 @@ class CommandExecutor(private val runner: KotlinConsoleRunner) {
 
     private fun sendCommandToProcess(command: String) {
         val processHandler = runner.processHandler
-        val processInputOS = processHandler.processInput ?: return logError(javaClass, "<p>Broken process stream</p>")
+        val processInputOS = processHandler.processInput ?: return logError(this::class.java, "<p>Broken process stream</p>")
         val charset = (processHandler as? BaseOSProcessHandler)?.charset ?: Charsets.UTF_8
 
         val xmlRes = XML_PREAMBLE +

idea/idea-repl/src/org/jetbrains/kotlin/console/ConsoleCompilerHelper.kt

@@ -40,7 +40,7 @@ class ConsoleCompilerHelper(
     fun compileModule() {
         if (ExecutionManager.getInstance(project).contentManager.removeRunContent(executor, contentDescriptor)) {
             CompilerManager.getInstance(project).make(module) {
-                aborted: Boolean, errors: Int, warnings: Int, compileContext: CompileContext ->
+                _: Boolean, errors: Int, _: Int, _: CompileContext ->
                 if (!module.isDisposed) {
                     KotlinConsoleKeeper.getInstance(project).run(module, previousCompilationFailed = errors > 0)
                 }

idea/idea-repl/src/org/jetbrains/kotlin/console/ReplOutputProcessor.kt

@@ -148,7 +148,7 @@ class ReplOutputProcessor(
     fun printInternalErrorMessage(internalErrorText: String) = WriteCommandAction.runWriteCommandAction(project) {
         val promptText = "Internal error occurred. Please, send report to developers.\n"
         printOutput(promptText, ConsoleViewContentType.ERROR_OUTPUT, ReplIcons.RUNTIME_EXCEPTION)
-        logError(this.javaClass, internalErrorText)
+        logError(this::class.java, internalErrorText)
     }
 
     private fun getAttributesForSeverity(start: Int, end: Int, severity: Severity): TextAttributes {

idea/idea-repl/src/org/jetbrains/kotlin/console/gutter/ConsoleIndicatorRenderer.kt

@@ -26,5 +26,5 @@ class ConsoleIndicatorRenderer(iconWithTooltip: IconWithTooltip) : GutterIconRen
     override fun getTooltipText() = tooltip
 
     override fun hashCode() = icon.hashCode()
-    override fun equals(other: Any?) = icon == (other as? ConsoleIndicatorRenderer)?.icon ?: null
+    override fun equals(other: Any?) = icon == (other as? ConsoleIndicatorRenderer)?.icon
 }