Specify mapUri for directories

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 df181453d3e7565f5be1416cfa2f9f63296dd2a4..d5daf16e6217fbc9e9e373f332cbe61a44c77810 100644
--- a/pkg/analysis_server/doc/api.html
+++ b/pkg/analysis_server/doc/api.html
@@ -493,8 +493,8 @@ dt.typeDefinition {
             </dd><dt class="field"><b><i>packageMap ( Map&lt;String, Map&lt;String, List&lt;<a href="#type_FilePath">FilePath</a>&gt;&gt;&gt; )</i></b></dt><dd>
               
               <p>
-                A mapping from context source roots to package maps which map 
-                package names to source directories for use in client-side 
+                A mapping from context source roots to package maps which map
+                package names to source directories for use in client-side
                 package URI resolution.
               </p>
             </dd></dl></dd><dt class="request">analysis.getNavigation</dt><dd><div class="box"><pre>request: {
@@ -1920,6 +1920,11 @@ dt.typeDefinition {
         <p>
           Exactly one of the file and uri fields must be provided.
         </p>
+        <p>
+          If the root of the execution context is a directory rather than a
+          file, then an error of type <tt>MAP_URI_FOR_DIRECTORY</tt> will be
+          generated.
+        </p>
         
         
       <h4>Parameters</h4><dl><dt class="field"><b><i>id ( <a href="#type_ExecutionContextId">ExecutionContextId</a> )</i></b></dt><dd>