Translate Java's @Override into Dart's @override.

pkg/analyzer/lib/src/generated/source_io.dart

Index: pkg/analyzer/lib/src/generated/source_io.dart
diff --git a/pkg/analyzer/lib/src/generated/source_io.dart b/pkg/analyzer/lib/src/generated/source_io.dart
index 5858ab30e9fd372dc267bf676548bc70336bf146..711d7fe255b475e64bb69d090b295a20ee43f670 100644
--- a/pkg/analyzer/lib/src/generated/source_io.dart
+++ b/pkg/analyzer/lib/src/generated/source_io.dart
@@ -45,14 +45,17 @@ abstract class LocalSourcePredicate {
 }
 
 class LocalSourcePredicate_FALSE implements LocalSourcePredicate {
+  @override
   bool isLocal(Source source) => false;
 }
 
 class LocalSourcePredicate_TRUE implements LocalSourcePredicate {
+  @override
   bool isLocal(Source source) => true;
 }
 
 class LocalSourcePredicate_NOT_SDK implements LocalSourcePredicate {
+  @override
   bool isLocal(Source source) => source.uriKind != UriKind.DART_URI;
 }
 
@@ -94,10 +97,13 @@ class FileBasedSource implements Source {
     this._uriKind = uriKind;
   }
 
+  @override
   bool operator ==(Object object) => object != null && this.runtimeType == object.runtimeType && _file == (object as FileBasedSource)._file;
 
+  @override
   bool exists() => _file.isFile();
 
+  @override
   TimestampedData<String> get contents {
     TimeCounter_TimeCounterHandle handle = PerformanceStatistics.io.start();
     try {
@@ -107,6 +113,7 @@ class FileBasedSource implements Source {
     }
   }
 
+  @override
   String get encoding {
     if (_encoding == null) {
       _encoding = "${_uriKind.encoding}${_file.toURI().toString()}";
@@ -114,18 +121,25 @@ class FileBasedSource implements Source {
     return _encoding;
   }
 
+  @override
   String get fullName => _file.getAbsolutePath();
 
+  @override
   int get modificationStamp => _file.lastModified();
 
+  @override
   String get shortName => _file.getName();
 
+  @override
   UriKind get uriKind => _uriKind;
 
+  @override
   int get hashCode => _file.hashCode;
 
+  @override
   bool get isInSystemLibrary => identical(_uriKind, UriKind.DART_URI);
 
+  @override
   Source resolveRelative(Uri containedUri) {
     try {
       Uri resolvedUri = file.toURI().resolveUri(containedUri);
@@ -135,6 +149,7 @@ class FileBasedSource implements Source {
     return null;
   }
 
+  @override
   String toString() {
     if (_file == null) {
       return "<unknown source>";
@@ -212,6 +227,7 @@ class PackageUriResolver extends UriResolver {
     this._packagesDirectories = packagesDirectories;
   }
 
+  @override
   Source fromEncoding(UriKind kind, Uri uri) {
     if (identical(kind, UriKind.PACKAGE_SELF_URI) || identical(kind, UriKind.PACKAGE_URI)) {
       return new FileBasedSource.con2(new JavaFile.fromUri(uri), kind);
@@ -219,6 +235,7 @@ class PackageUriResolver extends UriResolver {
     return null;
   }
 
+  @override
   Source resolveAbsolute(Uri uri) {
     if (!isPackageUri(uri)) {
       return null;
@@ -256,6 +273,7 @@ class PackageUriResolver extends UriResolver {
     return new FileBasedSource.con2(getCanonicalFile(_packagesDirectories[0], pkgName, relPath), UriKind.PACKAGE_URI);
   }
 
+  @override
   Uri restoreAbsolute(Source source) {
     if (source is FileBasedSource) {
       String sourcePath = source.file.getPath();
@@ -361,8 +379,10 @@ class DirectoryBasedSourceContainer implements SourceContainer {
     this._path = _appendFileSeparator(path);
   }
 
+  @override
   bool contains(Source source) => source.fullName.startsWith(_path);
 
+  @override
   bool operator ==(Object obj) => (obj is DirectoryBasedSourceContainer) && obj.path == path;
 
   /**
@@ -372,8 +392,10 @@ class DirectoryBasedSourceContainer implements SourceContainer {
    */
   String get path => _path;
 
+  @override
   int get hashCode => _path.hashCode;
 
+  @override
   String toString() => "SourceContainer[${_path}]";
 }
 
@@ -394,6 +416,7 @@ class FileUriResolver extends UriResolver {
    */
   static bool isFileUri(Uri uri) => uri.scheme == FILE_SCHEME;
 
+  @override
   Source fromEncoding(UriKind kind, Uri uri) {
     if (identical(kind, UriKind.FILE_URI)) {
       return new FileBasedSource.con2(new JavaFile.fromUri(uri), kind);
@@ -401,6 +424,7 @@ class FileUriResolver extends UriResolver {
     return null;
   }
 
+  @override
   Source resolveAbsolute(Uri uri) {
     if (!isFileUri(uri)) {
       return null;