Use correct Jandex class when checking presence of new method

Code was checking wrongly a class inside Weld that use that same name ClassInfo
that the one on Jandex that is where the new method is present.

impl/src/main/java/org/jboss/weld/bootstrap/FastAnnotatedTypeLoader.java

@@ -126,7 +126,7 @@ private <T> SlimAnnotatedType<T> loadSlimAnnotatedType(Class<T> clazz, String bd
 
     private boolean isJandexSetFlagsAvailable() {
         try {
-            Method setFlags = AccessController.doPrivileged(GetDeclaredMethodAction.of(ClassFileInfo.class, "setFlags", short.class));
+            Method setFlags = AccessController.doPrivileged(GetDeclaredMethodAction.of(org.jboss.jandex.ClassInfo.class, "setFlags", short.class));
             return setFlags != null;
         } catch (Exception e) {
             return false;