Change MirrorSystem.libraries to Map<Uri, String>

sdk/lib/_internal/compiler/implementation/source_file_provider.dart

 // 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.
 
 library source_file_provider;
 
 import 'dart:async';
 import 'dart:uri';
 import 'dart:io';
 import 'dart:utf';
 
 import '../compiler.dart' as api show Diagnostic;
 import 'dart2js.dart' show AbortLeg;
 import 'colors.dart' as colors;
 import 'source_file.dart';
 import 'filenames.dart';
 import 'util/uri_extras.dart';
 
 String readAll(String filename) {
   var file = (new File(filename)).openSync();
   var length = file.lengthSync();
   var buffer = new List<int>(length);
   var bytes = file.readListSync(buffer, 0, length);
   file.closeSync();
   return new String.fromCharCodes(new Utf8Decoder(buffer).decodeRest());
 }
 
 class SourceFileProvider {
   bool isWindows = (Platform.operatingSystem == 'windows');
-  Uri cwd = getCurrentDirectory();

[ahe, 2013/04/09 08:28:44]

I think it makes sense to keep the local variable.

[Johnni Winther, 2013/04/22 13:00:02]

Done.

   Map<String, SourceFile> sourceFiles = <String, SourceFile>{};
   int dartCharactersRead = 0;
 
   Future<String> readStringFromUri(Uri resourceUri) {
     if (resourceUri.scheme != 'file') {
       throw new ArgumentError("Unknown scheme in uri '$resourceUri'");
     }
     String source;
     try {
       source = readAll(uriPathToNative(resourceUri.path));
     } on FileIOException catch (ex) {
-      throw 'Error: Cannot read "${relativize(cwd, resourceUri, isWindows)}" '
+      throw 'Error: Cannot read '
+            '"${relativize(currentDirectory, resourceUri, isWindows)}" '
             '(${ex.osError}).';
     }
     dartCharactersRead += source.length;
-    sourceFiles[resourceUri.toString()] =
-      new SourceFile(relativize(cwd, resourceUri, isWindows), source);
+    sourceFiles[resourceUri.toString()] = new SourceFile(
+        relativize(currentDirectory, resourceUri, isWindows), source);
     return new Future.immediate(source);
   }
 }
 
 class FormattingDiagnosticHandler {
   final SourceFileProvider provider;
   bool showWarnings = true;
   bool verbose = false;
   bool isAborting = false;
   bool enableColors = false;
@@ skipping 54 matching lines @@
       print(file.getLocationMessage(color(message), begin, end, true, color));
     }
     if (fatal && throwOnError) {
       isAborting = true;
       throw new AbortLeg(message);
     }
   }
 }