Fix title adjustment code.

- Failed for multi-word symbol kinds ("enum member").
- Now uses the actual part of the title instead of node.name, which is necessary for fixing dlang/ddox#82 completely.

dpl-docs/views/layout.dt

@@ -108,11 +108,12 @@ html(lang='en-US')
             span
               | View or edit the community-maintained wiki page associated with this page.
 
-      - auto hidx = std.string.indexOf(title, ' ');
-      - if (title.endsWith(" - multiple declarations"))
-        h1 <code><a href="#{info.linkTo(info.mod)}">#{info.mod.qualifiedName}</a>.#{title[0 .. $-24]}</code> #{title[$-24 ..$]}
-      - else if (hidx > 0 && !title.startsWith("Module ") && info.mod)
-        h1 #{title[0 .. hidx]} <code><a href="#{info.linkTo(info.mod)}">#{info.mod.qualifiedName}</a>.#{title[hidx+1 .. $]}</code>
+      - auto hidx = std.string.lastIndexOf(title, ' ');
+      - auto node = info.docGroups.length ? info.docGroups[0].members[0] : null;
+      - if (title.endsWith(" - multiple declarations") && node)
+        h1 <code><a href="#{info.linkTo(node.parent)}">#{node.parent.qualifiedName}</a>.#{title[0 .. $-24]}</code> #{title[$-24 ..$]}
+      - else if (hidx > 0 && !title.startsWith("Module ") && node)
+        h1 #{title[0 .. hidx]} <code><a href="#{info.linkTo(node.parent)}">#{node.parent.qualifiedName}</a>.#{node.name}</code>
       - else if (hidx > 0 && title.startsWith("Module ") && info.mod)
         h1 Module <code>#{info.mod.qualifiedName}</code>
       - else