fix token test generator

lib/ace/mode/_test/highlight_rules_test.js

@@ -11,9 +11,9 @@ function generateTestData() {
     var docs = fs.readdirSync(cwd + root);
     var specialDocs = fs.readdirSync(cwd);
     var modes = fs.readdirSync(cwd + "../").filter(function(x){
-        return /^\w+_highlight_rules.js$/.test(x);
+        return !/(_highlight_rules|behaviour|worker)\.js$/.test(x) && /\.js$/.test(x);
     }).map(function(x) {
-        return x.replace(/_highlight_rules.js$/, "");
+        return x.replace(/\.js$/, "");
     });
 
     console.log("Docs:", docs);