Replace - with _ when mapping from filename to C symbol name

runtime/tools/create_resources.py

 # Copyright (c) 2013, 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.
 #
 # This python script creates string literals in a C++ source file from a C++
 # source template and one or more resource files.
 
 import os
 import sys
 from os.path import join
 import time
 from optparse import OptionParser
 import re
 from datetime import date
 
 def makeResources(root_dir, input_files):
   result = ''
   resources = []
 
   # Write each file's contents as a byte string constant.
   for resource_file in input_files:
     if root_dir and resource_file.startswith(root_dir):
       resource_file_name = resource_file[ len(root_dir) : ]
     else:
       resource_file_name = resource_file
     resource_url = '/%s' % resource_file_name
     result += '// %s\n' % resource_file
     result += 'const char '
-    resource_name = re.sub(r'(/|\.)', '_', resource_file_name) + '_'
+    resource_name = re.sub(r'(/|\.|-)', '_', resource_file_name) + '_'
     result += resource_name
     result += '[] = {\n   '
     fileHandle = open(resource_file, 'rb')
     lineCounter = 0
     for byte in fileHandle.read():
       result += ' %d,' % ord(byte)
       lineCounter += 1
       if lineCounter == 10:
         result += '\n   '
         lineCounter = 0
@@ skipping 58 matching lines @@
 
     return 0
   except Exception, inst:
     sys.stderr.write('create_resources.py exception\n')
     sys.stderr.write(str(inst))
     sys.stderr.write('\n')
     return -1
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv))