Smart completion: fixed lookup string for anonymous object item

idea/src/org/jetbrains/jet/plugin/completion/smart/TypeInstantiationItems.kt

@@ -70,6 +70,7 @@ class TypeInstantiationItems(val resolveSession: ResolveSessionForBodies, val bi
         var lookupElement = createLookupElement(classifier, resolveSession, bindingContext)
 
         var lookupString = lookupElement.getLookupString()
+        var allLookupStrings = setOf(lookupString)
 
         val typeArgs = jetType.getArguments()
         var itemText = lookupString + DescriptorRenderer.SHORT_NAMES_IN_TYPES.renderTypeArguments(typeArgs)
@@ -80,7 +81,8 @@ class TypeInstantiationItems(val resolveSession: ResolveSessionForBodies, val bi
             val constructorParenthesis = if (classifier.getKind() != ClassKind.TRAIT) "()" else ""
             itemText += constructorParenthesis
             itemText = "object: " + itemText + "{...}"
-            lookupString = "object" //?
+            lookupString = "object"
+            allLookupStrings = setOf(lookupString, lookupElement.getLookupString())
             insertHandler = InsertHandler<LookupElement> {(context, item) ->
                 val editor = context.getEditor()
                 val startOffset = context.getStartOffset()
@@ -127,6 +129,8 @@ class TypeInstantiationItems(val resolveSession: ResolveSessionForBodies, val bi
         lookupElement = object: LookupElementDecorator<LookupElement>(lookupElement) {
             override fun getLookupString() = lookupString
 
+            override fun getAllLookupStrings() = allLookupStrings
+
             override fun renderElement(presentation: LookupElementPresentation) {
                 getDelegate().renderElement(presentation)
                 presentation.setItemText(itemText)

idea/testData/completion/smart/AnonymousObjectWithPrefix.kt

@@ -0,0 +1,5 @@
+trait Foo
+
+var a : Foo = o<caret>
+
+// EXIST: { lookupString:"object", itemText:"object: Foo{...}" }

idea/tests/org/jetbrains/jet/completion/JvmSmartCompletionTestGenerated.java

@@ -77,6 +77,12 @@ public class JvmSmartCompletionTestGenerated extends AbstractJvmSmartCompletionT
         doTest(fileName);
     }
 
+    @TestMetadata("AnonymousObjectWithPrefix.kt")
+    public void testAnonymousObjectWithPrefix() throws Exception {
+        String fileName = JetTestUtils.navigationMetadata("idea/testData/completion/smart/AnonymousObjectWithPrefix.kt");
+        doTest(fileName);
+    }
+
     @TestMetadata("AnyExpected.kt")
     public void testAnyExpected() throws Exception {
         String fileName = JetTestUtils.navigationMetadata("idea/testData/completion/smart/AnyExpected.kt");