Complete this/super before delegation call

idea/src/org/jetbrains/kotlin/idea/completion/CompletionSession.kt

@@ -310,6 +310,10 @@ class BasicCompletionSession(configuration: CompletionSessionConfiguration,
                         if (expression != null) {
                             collector.addElements(thisExpressionItems(bindingContext!!, expression, prefix).map { it.factory() })
                         }
+                        else {
+                            // for completion in secondary constructor delegation call
+                            collector.addElement(lookupElement)
+                        }
                     }
 
                     // if "return" is parsed correctly in the current context - insert it and all return@xxx items

idea/testData/completion/keywords/BeforeDelegationCall.kt

@@ -0,0 +1,5 @@
+class A(x: Int) {
+    constructor(): <caret>
+}
+
+// EXIST: this, super

idea/tests/org/jetbrains/kotlin/completion/KeywordCompletionTestGenerated.java

@@ -78,6 +78,12 @@ public class KeywordCompletionTestGenerated extends AbstractKeywordCompletionTes
         JetTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("idea/testData/completion/keywords"), Pattern.compile("^(.+)\\.kt$"), false);
     }
 
+    @TestMetadata("BeforeDelegationCall.kt")
+    public void testBeforeDelegationCall() throws Exception {
+        String fileName = JetTestUtils.navigationMetadata("idea/testData/completion/keywords/BeforeDelegationCall.kt");
+        doTest(fileName);
+    }
+
     @TestMetadata("BreakContinue.kt")
     public void testBreakContinue() throws Exception {
         String fileName = JetTestUtils.navigationMetadata("idea/testData/completion/keywords/BreakContinue.kt");