Small dartdoc fixes.

sdk/lib/_internal/compiler/implementation/mirrors/dart2js_mirror.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 mirrors_dart2js;
 
 import 'dart:async';
 import 'dart:collection' show LinkedHashMap;
 import 'dart:io';
 import 'dart:uri';
@@ skipping 198 matching lines @@
                        {Path packageRoot,
                         List<String> options: const <String>[],
                         api.DiagnosticHandler diagnosticHandler}) {
   Uri cwd = getCurrentDirectory();
   SourceFileProvider provider = new SourceFileProvider();
   if (diagnosticHandler == null) {
     diagnosticHandler =
         new FormattingDiagnosticHandler(provider).diagnosticHandler;
   }
   Uri scriptUri = cwd.resolve(script.toString());
-  Uri libraryUri = cwd.resolve('${libraryRoot}/');

[Johnni Winther, 2013/04/08 13:06:23]

This is not an error, but I want to avoid duplicate slashes in the URIs.

+  Uri libraryUri = cwd.resolve(appendSlash(libraryRoot.toString()));

[ahe, 2013/04/09 08:31:31]

I think I prefer '$foo' over foo.toString().  The latter is guaranteed to return
a string.

   Uri packageUri = null;
   if (packageRoot != null) {
-    packageUri = cwd.resolve('${packageRoot}/');
+    packageUri = cwd.resolve(appendSlash(packageRoot.toString()));
   }
   return api.compile(scriptUri, libraryUri, packageUri,
       provider.readStringFromUri, diagnosticHandler, options);
 }
 
 /**
  * Analyzes set of libraries and provides a mirror system which can be used for
  * static inspection of the source code.
  */
 Future<MirrorSystem> analyze(List<Path> libraries,
                              Path libraryRoot,
                              {Path packageRoot,
                               List<String> options: const <String>[],
                               api.DiagnosticHandler diagnosticHandler}) {
   Uri cwd = getCurrentDirectory();
   SourceFileProvider provider = new SourceFileProvider();
   if (diagnosticHandler == null) {
     diagnosticHandler =
         new FormattingDiagnosticHandler(provider).diagnosticHandler;
   }
-  Uri libraryUri = cwd.resolve('${libraryRoot}/');
+  Uri libraryUri = cwd.resolve(appendSlash(libraryRoot.toString()));
   Uri packageUri = null;
   if (packageRoot != null) {
-    packageUri = cwd.resolve('${packageRoot}/');
+    packageUri = cwd.resolve(appendSlash(packageRoot.toString()));
   }
   options = new List<String>.from(options);
   options.add('--analyze-only');
   options.add('--analyze-signatures-only');
   options.add('--analyze-all');
 
   bool compilationFailed = false;
   void internalDiagnosticHandler(Uri uri, int begin, int end,
                                  String message, api.Diagnostic kind) {
     if (kind == api.Diagnostic.ERROR ||
@@ skipping 1456 matching lines @@
       return new Future.immediate(
           new Dart2JsStringConstantMirror.fromString(mirrors, text));
     } else if (fieldName == 'trimmedText') {
       return new Future.immediate(
           new Dart2JsStringConstantMirror.fromString(mirrors, trimmedText));
     }
     // TODO(johnniwinther): Which exception/error should be thrown here?
     throw new UnsupportedError('InstanceMirror does not have a reflectee');
   }
 }