update analysis server spec and regen files

pkg/analysis_server/doc/api.html

Index: pkg/analysis_server/doc/api.html
diff --git a/pkg/analysis_server/doc/api.html b/pkg/analysis_server/doc/api.html
index 7a06563d22391979e4192d6c0e9b814cd073cc73..606897d04ce4ffc1571a248b67ef17c243eac71b 100644
--- a/pkg/analysis_server/doc/api.html
+++ b/pkg/analysis_server/doc/api.html
@@ -738,6 +738,8 @@ dt.typeDefinition {
 }</pre><br><pre>response: {
   "id": String
   "error": <span style="color:#999999">optional</span> <a href="#type_RequestError">RequestError</a>
+  "result": {
+  }
 }</pre></div>
         <p>
           Update the content of one or more files. Files that were
@@ -750,13 +752,14 @@ dt.typeDefinition {
           filesystem.
         </p>
         
+        
       <h4>Parameters</h4><dl><dt class="field"><b><i>files ( Map&lt;<a href="#type_FilePath">FilePath</a>, <a href="#type_AddContentOverlay">AddContentOverlay</a> | <a href="#type_ChangeContentOverlay">ChangeContentOverlay</a> | <a href="#type_RemoveContentOverlay">RemoveContentOverlay</a>&gt; )</i></b></dt><dd>
             
             <p>
               A table mapping the files whose content has changed to a
               description of the content change.
             </p>
-          </dd></dl></dd><dt class="request">analysis.updateOptions</dt><dd><div class="box"><pre>request: {
+          </dd></dl><h4>Returns</h4><dl></dl></dd><dt class="request">analysis.updateOptions</dt><dd><div class="box"><pre>request: {
   "id": String
   "method": "analysis.updateOptions"
   "params": {