Icons for lighs classes

idea/src/org/jetbrains/jet/plugin/JetIconProvider.java

@@ -28,6 +28,7 @@ import com.intellij.util.containers.ContainerUtil;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.jet.asJava.JetLightClass;
+import org.jetbrains.jet.asJava.KotlinLightClass;
 import org.jetbrains.jet.asJava.KotlinLightClassForPackage;
 import org.jetbrains.jet.lang.psi.*;
 import org.jetbrains.jet.lexer.JetTokens;
@@ -102,6 +103,10 @@ public class JetIconProvider extends IconProvider {
             return JetIcons.FILE;
         }
 
+        if (psiElement instanceof KotlinLightClass) {
+            psiElement = psiElement.getNavigationElement();
+        }
+
         if (psiElement instanceof JetNamedFunction) {
             if (((JetFunction) psiElement).getReceiverTypeRef() != null) {
                 return JetIcons.EXTENSION_FUNCTION;