method reference: registry option to skip unsound capture conversion specified in the spec but ignored by the javac, to be changed in the next spec version (IDEA-171488)

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

@@ -0,0 +1,15 @@
+import java.util.Optional;
+import java.util.function.Function;
+
+abstract class View {
+  {
+    foo(View::returnType).orElse(void.class);
+  }
+
+  abstract <H> Optional<H> foo(Function<View, H> f);
+
+  public Class<?> returnType() {
+    return null;
+  }
+}
+