Fixed bug that leads to empty file index in the HTML output.

src/index.cpp

@@ -778,6 +778,17 @@ static void writeDirHierarchy(OutputList &ol, FTVHelp* ftv,bool addToIndex)
         {
           bool doc,src;
           doc = fileVisibleInIndex(fd,src);
+          QCString reference, outputBase;
+          if (doc)
+          {
+            reference = fd->getReference();
+            outputBase = fd->getOutputFileBase();
+          }
+          ftv->addContentsItem(FALSE,fd->displayName(),          
+                               reference, outputBase, 0,         
+                               FALSE,FALSE,fd);
+          if (addToIndex)
+          {
             if (doc)
             {
               addMembersToIndex(fd,LayoutDocManager::File,fd->displayName(),QCString(),TRUE);
@@ -792,6 +803,7 @@ static void writeDirHierarchy(OutputList &ol, FTVHelp* ftv,bool addToIndex)
         }
       }
     }
+  }
   endIndexHierarchy(ol,0); 
   if (ftv)
   {