testdata for IDEA-57289

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/genericsHighlighting/IDEA57289.java

@@ -0,0 +1,8 @@
+class C<T> {
+    void foo(C<C<?>> x) {
+        C<Object> c = bar(x);
+    }
+    <T> C<T> bar(C<? super C<T>> x){
+        return null;
+    }
+}