check for upper bound in wrapped wildcard (IDEA-105846)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/genericsHighlighting/IDEA105846.java

@@ -0,0 +1,5 @@
+class MyClass {
+    public static void main(Class<? extends MyClass> clazz){
+        clazz = (Class<? extends MyClass>) clazz.getSuperclass();
+    }
+}