more informative error message (IDEA-125544)

java/java-analysis-impl/src/com/intellij/codeInsight/daemon/impl/analysis/HighlightVisitorImpl.java

@@ -1229,11 +1229,6 @@ public class HighlightVisitorImpl extends JavaElementVisitor implements Highligh
           myHolder.add(HighlightInfo.newHighlightInfo(HighlightInfoType.ERROR).range(expression)
                          .descriptionAndTooltip(functionalInterfaceType.getPresentableText() + " is not a functional interface").create());
         }
-        else if (LambdaUtil.dependsOnTypeParams(functionalInterfaceType, functionalInterfaceType, expression)) {
-          HighlightInfo result1 =
-            HighlightInfo.newHighlightInfo(HighlightInfoType.ERROR).range(expression).descriptionAndTooltip("Cyclic inference").create();
-          myHolder.add(result1); //todo[ann] append not inferred type params info
-        }
       }
       if (!myHolder.hasErrorResults()) {
         final PsiElement referenceNameElement = expression.getReferenceNameElement();

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

@@ -0,0 +1,9 @@
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+
+class Main {
+  public void test() {
+    Collections.sort(new ArrayList<>(), Comparator::<error descr="Cannot resolve method 'reversed'">reversed</error>);
+  }
+}

java/java-tests/testSrc/com/intellij/codeInsight/daemon/lambda/NewMethodRefHighlightingTest.java

@@ -293,6 +293,10 @@ public class NewMethodRefHighlightingTest extends LightDaemonAnalyzerTestCase {
     doTest();
   }
 
+  public void testUnresolvedMethodReference() throws Exception {
+    doTest();
+  }
+
   private void doTest() {
     doTest(false);
   }