process override equivalent methods when check for functional interface target (IDEA-153324)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/interfaceMethods/CheckForFunctionalInterfaceCandidatesWhenOverrideEquivalentMethodsAreFoundInSuperInterfaces.java

@@ -0,0 +1,12 @@
+import java.util.*;
+
+@FunctionalInterface
+interface InfiniteIntIterator extends InfiniteIterator<Integer>, PrimitiveIterator.OfInt {}
+
+@FunctionalInterface
+interface InfiniteIterator<T> extends Iterator<T> {
+  @Override
+  default boolean hasNext() {
+    return true;
+  }
+}