Fix names with '$' to not conflict with operators or internal helpers

frog/scripts/token_info.py

 # Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 class Token:
   def __init__(self, name, text, precedence, customFinishCode=None,
                stringRepr=None):
     self.name = name
     self.text = text
     self.precedence = precedence
     self.customFinishCode = customFinishCode
 
     if stringRepr is None:
       if self.text:
         stringRepr = self.text
       elif self.name is not None:
         stringRepr = self.name.lower().replace('_', ' ')
 
     self.stringRepr = stringRepr
 
     # roughly the user-definable operators
     EXCLUDES = ['!=', '===', '!==', '&&', '||']
     INCLUDES = ['[]', '[]=', '~']
     if text in INCLUDES or (self.precedence >= 6 and text not in EXCLUDES):
-      self.methodName = '$' + name.lower()
+      self.methodName = ':' + name.lower()
     else:
       self.methodName = None
 
   def getFinishCode(self):
     if self.customFinishCode:
       return self.customFinishCode
     else:
       return '_finishToken(TokenKind.%s)' % self.name
 
 
@@ skipping 167 matching lines @@
   Keyword('SUPER', "super", False),
   Keyword('SWITCH', "switch", False),
   Keyword('THIS', "this", False),
   Keyword('THROW', "throw", False),
   Keyword('TRUE', "true", False),
   Keyword('TYPEDEF', "typedef", True),
   Keyword('TRY', "try", False),
   Keyword('VAR', "var", False),
   Keyword('VOID', "void", False),
   Keyword('WHILE', "while", False)]