fix intersection types in receiver position (IDEA-144472)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/methodRef/IntersectionTypesInReceiverPosition.java

@@ -0,0 +1,23 @@
+import java.util.*;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+abstract class Constraint<ConstraintType extends Constraint<ConstraintType>> {
+
+  protected abstract Stream<Event> evStream();
+
+  private void foo(final Set<CConstraint> ctrlSTCs, 
+                   final Set<BConstraint> probCstrs) {
+    ArrayList<Event> a = new ArrayList<Event>(Stream
+                                                .concat(ctrlSTCs.stream(), probCstrs.stream())
+                                                .flatMap(Constraint::evStream)
+                                                .collect(Collectors.toSet()));
+  }
+
+  private abstract class CConstraint extends Constraint<CConstraint> implements I {}
+  private abstract class BConstraint extends Constraint<BConstraint> implements I {}
+
+  interface I {}
+  interface Event {}
+
+}