title: Vim auto complete, both with current file and dictionary
body: <p>In Vim we can achieve code completion by either using dictionaries or the current file, to come up with suggestions.
  But what I'm looking after is to have both.</p>
  
  <p>My vimrc has the following code completion:</p>
  
  <pre><code>"k=uses dictionary, i=uses current and included files, t=tag completion.
  set complete-=k
  set complete+=k
  set dictionary+=/some_path/some_file
  </code></pre>
  
  <p>Using this i can either use a dictionary, or current file.
  But what I want is to see both at the same time.</p>
  
  <p>How do I do that?</p>