javac needs to show more information in error message for the following negative varargs test cases:
1. Misplaced ellipsis: void foo( String s, Object o... ) { }
2. Varargs is not the last argument: void foo(String... s, int i){}

As per Jon's review: In both cases, the dominant (first) error message is "')' expected". In both cases, the reality is the language allows any of ',', ')', or '[' there, and javac is wrong for not mentioning all of these possibilities.

Please refer to the attached test cases and the current corresponding .out files.