Fix typo in RenderParagraph's |inline| getter

sky/sdk/lib/rendering/paragraph.dart

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 import 'dart:sky' as sky;
 
 import 'box.dart';
 import 'object.dart';
 
 enum FontWeight {
@@ skipping 157 matching lines @@
     _layoutRoot.rootElement = _document.createElement('p');
     inline = inlineValue;
   }
 
   final sky.Document _document = new sky.Document();
   final sky.LayoutRoot _layoutRoot = new sky.LayoutRoot();
 
   InlineBase _inline;
   BoxConstraints _constraintsForCurrentLayout;
 
-  String get inline => _inline;
+  InlineBase get inline => _inline;
   void set inline (InlineBase value) {
     _inline = value;
     _layoutRoot.rootElement.setChild(_inline._toDOM(_document));
     markNeedsLayout();
   }
 
   sky.Element _layout(BoxConstraints constraints) {
     _layoutRoot.maxWidth = constraints.maxWidth;
     _layoutRoot.minWidth = constraints.minWidth;
     _layoutRoot.minHeight = constraints.minHeight;
@@ skipping 51 matching lines @@
   }
 
   // we should probably expose a way to do precise (inter-glpyh) hit testing
 
   String debugDescribeSettings(String prefix) {
     String result = '${super.debugDescribeSettings(prefix)}';
     result += '${prefix}inline: ${inline}\n';
     return result;
   }
 }