Addition of AnalysisServer.isSocketOpen for clients to know if the server is still running.

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 66d35decce32bed3f0559b4a94c47fe6edeffecd..6038c0e0216eb14962dd7008107bfdb22fb3869d 100644
--- a/pkg/analysis_server/doc/api.html
+++ b/pkg/analysis_server/doc/api.html
@@ -2257,8 +2257,9 @@ dt.typeDefinition {
           </dd><dt class="field"><b><i>returnType ( <span style="color:#999999">optional</span> String )</i></b></dt><dd>
             
             <p>
-              The return type of the getter, function or method being
-              suggested. This field is omitted if the suggested element
+              The return type of the getter, function or method
+              or the type of the field being suggested.
+              This field is omitted if the suggested element
               is not a getter, function or method.
             </p>
           </dd><dt class="field"><b><i>parameterNames ( <span style="color:#999999">optional</span> List&lt;String&gt; )</i></b></dt><dd>