overload resolution: adapt return types before comparing (IDEA-177065)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/overloadResolution/AdaptReturnTypesOfSiblingMethods.java

@@ -0,0 +1,23 @@
+
+import java.util.Collections;
+import java.util.List;
+
+interface A<T, ID> {
+  Iterable<T> findAll(Iterable<ID> ids);
+}
+
+interface B<T, ID> {
+  List<T> findAll(Iterable<ID> ids);
+}
+
+interface C<T> extends B<T, Integer>, A<T, Integer> {}
+
+interface D extends C<String> {}
+
+class Test {
+  public void foo(D d, C<String> c) {
+    List<Integer> ids = Collections.emptyList();
+    List<String> strings  = d.findAll(ids);
+    List<String> strings1 = c.findAll(ids);
+  }
+}