dart:io | Change File.fullPath to FileSystemEntity.resolveSymbolicLinks.

sdk/lib/io/file_impl.dart

Index: sdk/lib/io/file_impl.dart
diff --git a/sdk/lib/io/file_impl.dart b/sdk/lib/io/file_impl.dart
index d803c950ef4b72bcf0cb9d38f67162253194afbc..7969efbd4abb75f209f6575bd9f4467f71331a30 100644
--- a/sdk/lib/io/file_impl.dart
+++ b/sdk/lib/io/file_impl.dart
@@ -204,7 +204,7 @@ const int _CREATE_REQUEST = 1;
 const int _DELETE_REQUEST = 2;
 const int _RENAME_REQUEST = 3;
 const int _OPEN_REQUEST = 4;
-const int _FULL_PATH_REQUEST = 5;
+const int _RESOLVE_SYMBOLIC_LINKS_REQUEST = 5;
 const int _CLOSE_REQUEST = 6;
 const int _POSITION_REQUEST = 7;
 const int _SET_POSITION_REQUEST = 8;
@@ -444,28 +444,9 @@ class _File extends FileSystemEntity implements File {
     return new _RandomAccessFile(id, "");
   }
 
-  Future<String> fullPath() {
-    _ensureFileService();
-    List request = new List(2);
-    request[0] = _FULL_PATH_REQUEST;
-    request[1] = path;
-    return _fileService.call(request).then((response) {
-      if (_isErrorResponse(response)) {
-        throw _exceptionFromResponse(response,
-                                     "Cannot retrieve full path",
-                                     path);
-      }
-      return response;
-    });
-  }
+  Future<String> fullPath() => resolveSymbolicLinks();
 
-  external static _fullPath(String path);
-
-  String fullPathSync() {
-    var result = _fullPath(path);
-    throwIfError(result, "Cannot retrieve full path", path);
-    return result;
-  }
+  String fullPathSync() => resolveSymbolicLinksSync();
 
   Stream<List<int>> openRead([int start, int end]) {
     return new _FileStream(path, start, end);