updates to the analysis server generated spec doc

pkg/analyzer_plugin/tool/spec/to_html.dart

 // Copyright (c) 2017, 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.
 
 /**
  * Code for displaying the API as HTML.  This is used both for generating a
  * full description of the API as a web page, and for generating doc comments
  * in generated code.
  */
 import 'dart:convert';
@@ skipping 16 matching lines @@
   margin: 0 auto;
   padding: 0 16px;
   font-size: 16px;
   line-height: 1.5;
   color: #111;
   background-color: #fdfdfd;
   font-weight: 300;
   -webkit-font-smoothing: auto;
 }
 
-h1 {
-  text-align: center;
-}
-
 h2, h3, h4, h5 {
   margin-bottom: 0;
 }
 
 h2.domain {
   border-bottom: 1px solid rgb(200, 200, 200);
   margin-bottom: 0.5em;
 }
 
 h4 {
@@ skipping 55 matching lines @@
 }
 
 a {
   text-decoration: none;
 }
 
 a:focus, a:hover {
   text-decoration: underline;
 }
 
+.deprecated {
+  text-decoration: line-through;
+}
+
 /* Styles for index */
 
 .subindex {
 }
 
 .subindex ul {
   padding-left: 0;
   margin-left: 0;
 
   -webkit-margin-before: 0;
@@ skipping 644 matching lines @@
     bool verticalBarNeeded = false;
     for (TypeDecl choice in typeUnion.choices) {
       if (verticalBarNeeded) {
         write(' | ');
       }
       visitTypeDecl(choice);
       verticalBarNeeded = true;
     }
   }
 }