Should an attempt to generify enum lead to a friendlier error?

```
$ cat E.java
public enum E<T> {}

$ javac E.java
E.java:1: error: '{' expected
public enum E<T> {}
             ^
E.java:1: error: <identifier> expected
public enum E<T> {}
                ^
E.java:1: error: reached end of file while parsing
public enum E<T> {}
                   ^
3 errors
```

In comparison, here's how javac reports on an attempt to generify annotation:

```
$ cat A.java
public @interface A<T> {}

$ javac A.java
A.java:1: error: annotation interface A cannot be generic
public @interface A<T> {}
                    ^
1 error
```