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

frog/scripts/token_kind_gen.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.
 from token_info import tokens, keywords
 from codegen import CodeWriter
 
 # TODO(jimhug): Compare perf of the switch pattern used here with maps and ifs
 
 def main():
   '''Generates the TokenKind class into token_kind.g.dart.'''
@@ skipping 42 matching lines @@
 
   cw.writeln('default: return -1;')
   cw.exitBlock('}')
   cw.exitBlock('}')
 
   cw.writeln()
   cw.enterBlock('static String rawOperatorFromMethod(String name) {')
   cw.enterBlock('switch(name) {')
   for tok in tokens:
     if tok.methodName is not None:
-      dname = repr(tok.methodName).replace('$', '\\$')
-      cw.writeln('case %s: return %s;' % (dname, repr(tok.text)))
-  cw.writeln("case '\\$ne': return '!=';");
+      cw.writeln('case %r: return %r;' % (tok.methodName, tok.text))
+  cw.writeln("case ':ne': return '!=';");
   cw.exitBlock('}')
   cw.exitBlock('}')
 
   cw.writeln()
   cw.enterBlock('static String binaryMethodName(int kind) {')
   cw.enterBlock('switch(kind) {')
   for tok in tokens:
     if tok.methodName is not None:
       dname = repr(tok.methodName).replace('$', '\\$')
       cw.writeln('case %s: return %s;' % (tok.name, dname))
@@ skipping 14 matching lines @@
   cw.writeln('return -1;')
   cw.exitBlock('}')
 
 
 
   cw.exitBlock('}')
 
   cw.writeToFile('token_kind')
 
 if __name__ == '__main__': main()