Removes dartc reliance on its own libraries, now can be targeted at any implementation's libraries

tools/create_sdk.py

 #!/usr/bin/env python
 #
 # 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.
 #
 # A script which will be invoked from gyp to create an SDK.
 #
 # Usage: create_sdk.py sdk_directory
 #
@@ skipping 285 matching lines @@
       join(LIB, 'dartdoc', 'client-live-nav.dart'),
       join(LIB, 'dartdoc', 'client-static.dart')
     ], [
       ("#import\('../../frog", "#import('../frog")
     ])
 
   # Create and populate lib/isolate
   copytree(join(HOME, 'lib', 'isolate'), join(LIB, 'isolate'),
            ignore=ignore_patterns('.svn'))
 
+  isolate_runtime_src = join(HOME, 'runtime', 'lib', 'isolate.dart')
+  isolate_runtime_dest = join(LIB, 'isolate', 'runtime', 'isolate.dart')
+  copyfile(isolate_runtime_src, isolate_runtime_dest)
+
   #
   # Create and populate lib/core.
   #
 
   # First, copy corelib/* to lib/{frog, runtime}
   for filename in corelib_sources:
     for target_dir in ['frog', 'runtime']:
       copyfile(join('corelib', 'src', filename),
                join(corelib_dest_dir, target_dir, filename))
 
@@ skipping 72 matching lines @@
   for filename in coreimpl_runtime_sources:
     if filename.endswith('.dart'):
       dest_file.write('#source("runtime/' + filename + '");\n')
   dest_file.close()
 
   # Create and copy tools.
 
   UTIL = join(SDK_tmp, 'util')
   os.makedirs(UTIL)
 
+
+  # Copy import maps
+  PLATFORMS = ['any', 'vm', 'dartium', 'dart2js', 'frog' ]
+  os.makedirs(join(LIB, 'config'))
+  for platform in PLATFORMS:
+    import_src = join(HOME, 'lib', 'config', 'import_' + platform + '.config')
+    import_dst = join(LIB, 'config', 'import_' + platform + '.config')
+    copyfile(import_src, import_dst);
+
   move(SDK_tmp, SDK)
 
 if __name__ == '__main__':
   sys.exit(Main(sys.argv))