new overload resolution: covariant comparison of return types

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/mostSpecific/MostSpecificByReturnType.java

@@ -0,0 +1,16 @@
+class Test {
+  interface I { Object invoke(); }
+  interface IStr { String foo(); }
+
+  private static void call(IStr str) {
+    System.out.println(str);
+  }
+
+  private static void <warning descr="Private method 'call(Test.I)' is never used">call</warning>(I i) {
+    System.out.println(i);
+  }
+
+  public static void main(String[] args)   {
+      call(()-> null);
+  }
+}

java/java-tests/testSrc/com/intellij/codeInsight/daemon/lambda/MostSpecificResolutionTest.java

@@ -79,6 +79,10 @@ public class MostSpecificResolutionTest extends LightDaemonAnalyzerTestCase {
     doTest(false);
   }
 
+  public void testMostSpecificByReturnType() throws Exception {
+    doTest();
+  }
+
   private void doTest() {
     doTest(true);
   }