method references: exclude type parameter used in return types only (IDEA-171480)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newMethodRef/IncludeOnlyTypeParametersUsedInParameterTypesExcludeThoseUsedInReturnOnly.java

@@ -0,0 +1,28 @@
+
+import java.util.function.Function;
+
+abstract class View<Tv, Av, Bv> {
+
+  public Const<Av, Tv> apply(final Fixed<Tv, Av, Bv, Const<Av, Tv>, Const<Av, Bv>> fix) {
+    return fix.apply(Const::new);
+  }
+}
+
+@FunctionalInterface
+interface Fixed< T, A, B,
+  FT extends Functor<T>,
+  FB extends Functor<B>> {
+  FT apply(Function< A, FB> function);
+}
+
+interface Functor<A> {
+}
+
+final class Const<A, B> implements Functor<B> {
+  A a;
+
+  public Const(A a) {
+    this.a = a;
+  }
+}
+