[antlr-interest] fixed the ~SET bug in lexer

[Gavin Lambert]

At 09:26 15/03/2007, Terence Parr wrote:
 >Complicated unit tests now pass like this:
 >
 >	public void testNotComplicatedSetRuleInLexer() throws Exception 
{
 >		Grammar g = new Grammar(
 >			"lexer grammar T;\n"+
 >			"A : B | ~B {;} ;\n" +
 >			"fragment B : 'a'|'b'|'c'..'e'|C ;\n" +
 >			"fragment C : 'f' ;\n"); // has to seen from B to C
[...]

Woohoo! :)  I look forward to the next version (once the predicate 
thing has been sorted out too).