KT-11823 Generate proper argument for closure constructor for this as a free variable. Give some explanation for function that generates closure arguments as well as a clear name. Give explanation to some code in UsageTracker.isSingletonReceiver, augmented by a test case.

js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/ClosureTest.java

@@ -173,7 +173,7 @@ public final class ClosureTest extends SingleFileTranslationTest {
     }
 
     // TODO: tests UsageTracker but encounters issue somewhere else. Uncomment when issue with `this` generation gets fixed
-    // Presumably, KT-11823
+    // Presumably, KT-11996
     /*public void testDeepInnerClassInLocalClass() throws Exception {
         checkFooBoxIsOk();
     }
@@ -185,4 +185,8 @@ public final class ClosureTest extends SingleFileTranslationTest {
     public void testImplicitGenericReceiverInExtensionInLocalClass() throws Exception {
         checkFooBoxIsOk();
     }
+
+    public void testClosureThisInLambdaInsideObject() throws Exception {
+        checkFooBoxIsOk();
+    }
 }

js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/NestedTypesTest.java

@@ -78,6 +78,14 @@ public class NestedTypesTest extends SingleFileTranslationTest {
         checkFooBoxIsOk();
     }
 
+    public void testImplicitOuterThisFromLambda() throws Exception {
+        checkFooBoxIsOk();
+    }
+
+    public void testImplicitOuterThisFromLocalClass() throws Exception {
+        checkFooBoxIsOk();
+    }
+
     @NotNull
     @Override
     protected List<String> additionalJsFiles(@NotNull EcmaVersion ecmaVersion) {