use entity.name.function in coffeescript classes

lib/ace/mode/coffee_highlight_rules.js

@@ -58,8 +58,8 @@ define(function(require, exports, module) {
                     token : "variable",
                     regex : "@" + identifier
                 }, {
-                    token : "label",
-                    regex : identifier + ":"
+                    token : "entity.name.function",
+                    regex : identifier + "(?=\\s*:\\s*(?:\\(.*?\\)\\s*)?->)"
                 }, {
                     token : "keyword",
                     regex : "(?:t(?:h(?:is|row|en)|ry|ypeof)|s(?:uper|witch)|return|b(?:reak|y)|c(?:ontinue|atch|lass)|i(?:n(?:stanceof)?|s(?:nt)?|f)|e(?:lse|xtends)|f(?:or (?:own)?|inally|unction)|wh(?:ile|en)|n(?:ew|ot?)|d(?:e(?:lete|bugger)|o)|loop|o(?:ff?|[rn])|un(?:less|til)|and|yes)"

lib/ace/theme/twilight.js

@@ -183,9 +183,6 @@ color:#5F5A60;\
 .ace-twilight .ace_variable {\
   color:#7587A6;\
 }\
-.ace-twilight .ace_label {\
-  color:#AC885B;\
-}\
 \
 .ace-twilight .ace_variable.ace_language {\
   \