Move frog/leg to lib/compiler/implementation.

lib/compiler/compiler.dart

 // Copyright (c) 2012, 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.
 
-#library('leg_api');
+#library('compiler');
 
 #import('../../lib/uri/uri.dart');
-#import('apiimpl.dart');
+#import('implementation/apiimpl.dart');
 
 // Unless explicitly allowed, passing null for any argument to the
 // methods of library will result in a NullPointerException being
 // thrown.
 
 /**
  * Returns the source corresponding to [uri]. If no such source exists
  * or if an error occur while fetching it, this method must throw an
  * exception.
  */
@@ skipping 22 matching lines @@
                        ReadUriFromString provider,
                        DiagnosticHandler handler,
                        [List<String> options = const []]) {
   Compiler compiler = new Compiler(provider, handler, libraryRoot, options);
   compiler.run(script);
   String code = compiler.assembledCode;
   Completer<String> completer = new Completer<String>();
   completer.complete(code);
   return completer.future;
 }