IDEA-94938 Invalid error reported on Type param

plugins/groovy/src/org/jetbrains/plugins/groovy/annotator/GroovyAnnotator.java

@@ -336,7 +336,7 @@ public class GroovyAnnotator extends GroovyElementVisitor implements Annotator {
   }
 
   private static void checkConstructors(AnnotationHolder holder, GrTypeDefinition typeDefinition) {
-    if (typeDefinition.isEnum() || typeDefinition.isInterface() || typeDefinition.isAnonymous()) return;
+    if (typeDefinition.isEnum() || typeDefinition.isInterface() || typeDefinition.isAnonymous() || typeDefinition instanceof GrTypeParameter) return;
     final PsiClass superClass = typeDefinition.getSuperClass();
     if (superClass == null) return;
 

plugins/groovy/test/org/jetbrains/plugins/groovy/lang/highlighting/GroovyHighlightingTest.groovy

@@ -927,4 +927,22 @@ class A {
 
     assertNotNull(myFixture.findSingleIntention("Create Method 'abc'"))
   }
+
+  void testTypeParameterIsCorrect() {
+    testHighlighting('''\
+class Component{}
+
+class Window extends Component{
+    Window(i) {
+    }
+}
+
+class Super <C extends Component> {
+
+}
+
+class Sub<W extends Window> extends Super<W> {
+}
+''')
+  }
 }