Fixed exception

idea/src/org/jetbrains/jet/plugin/completion/handlers/KotlinClassInsertHandler.kt

@@ -31,6 +31,7 @@ import org.jetbrains.jet.plugin.caches.resolve.getResolutionFacade
 import org.jetbrains.jet.lang.resolve.BindingContext
 import org.jetbrains.jet.lang.resolve.DescriptorUtils
 import org.jetbrains.jet.lang.resolve.lazy.BodyResolveMode
+import org.jetbrains.jet.lang.descriptors.ClassKind
 
 public object KotlinClassInsertHandler : BaseDeclarationInsertHandler() {
     override fun handleInsert(context: InsertionContext, item: LookupElement) {
@@ -52,7 +53,13 @@ public object KotlinClassInsertHandler : BaseDeclarationInsertHandler() {
                 if (nameRef != null) {
                     val bindingContext = nameRef.getResolutionFacade().analyze(nameRef, BodyResolveMode.PARTIAL)
                     val target = bindingContext[BindingContext.REFERENCE_TARGET, nameRef] as? ClassDescriptor
-                    if (target != null && DescriptorUtils.getFqNameSafe(target).asString() == qualifiedName) return
+                    if (target != null) {
+                        val realTarget = if (target.getKind() == ClassKind.CLASS_OBJECT)
+                            target.getContainingDeclaration() as ClassDescriptor
+                        else
+                            target
+                        if (DescriptorUtils.getFqName(realTarget).asString() == qualifiedName) return
+                    }
                 }
 
                 val tempPrefix = if (nameRef != null)

idea/testData/completion/handlers/basic/ClassWithClassObject.kt

@@ -0,0 +1,9 @@
+class AClass {
+    class object {}
+}
+
+fun foo() {
+    bar(<caret>)
+}
+
+// ELEMENT: AClass

idea/testData/completion/handlers/basic/ClassWithClassObject.kt.after

@@ -0,0 +1,9 @@
+class AClass {
+    class object {}
+}
+
+fun foo() {
+    bar(AClass<caret>)
+}
+
+// ELEMENT: AClass

idea/tests/org/jetbrains/jet/completion/handlers/BasicCompletionHandlerTestGenerated.java

@@ -36,6 +36,12 @@ public class BasicCompletionHandlerTestGenerated extends AbstractBasicCompletion
         JetTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("idea/testData/completion/handlers/basic"), Pattern.compile("^(.+)\\.kt$"), true);
     }
 
+    @TestMetadata("ClassWithClassObject.kt")
+    public void testClassWithClassObject() throws Exception {
+        String fileName = JetTestUtils.navigationMetadata("idea/testData/completion/handlers/basic/ClassWithClassObject.kt");
+        doTest(fileName);
+    }
+
     @TestMetadata("ExtensionReceiverTypeArg.kt")
     public void testExtensionReceiverTypeArg() throws Exception {
         String fileName = JetTestUtils.navigationMetadata("idea/testData/completion/handlers/basic/ExtensionReceiverTypeArg.kt");