testdata for IDEA-57388

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/genericsHighlighting/IDEA57388.java

@@ -0,0 +1,7 @@
+
+class B<T extends Cloneable> {}
+class A<T> {
+  A<B<? extends Cloneable>> foo(A<B<?>> x){
+    return x;
+  }
+}