lambda: use incomplete substitutor when calc functional interface (IDEA-97038)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/highlighting/UseIncompleteParentSubstitutor.java

@@ -0,0 +1,25 @@
+import java.util.concurrent.atomic.AtomicInteger;
+
+class Test {
+  static class List<T> {
+    public Stream<T> stream() {
+      return null;
+    }
+  }
+
+  interface IntFunction<T> {
+      public int applyAsInt(T t);
+  }
+
+  static class Stream<E> {
+    public Stream map(IntFunction<? super E> mapper) {
+      return null;
+    }
+  }
+
+  public static void main(List<AtomicInteger> list) {
+    list.stream().map(atomic -> atomic.get());
+  }
+}
+
+

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

@@ -169,6 +169,10 @@ public class LambdaHighlightingTest extends LightDaemonAnalyzerTestCase {
     doTest();
   }
 
+  public void testUseIncompleteParentSubstitutor() throws Exception {
+    doTest();
+  }
+
   private void doTest() throws Exception {
     doTest(BASE_PATH + "/" + getTestName(false) + ".java", false, false);
   }