title: Code completion for Eigen library doesn’t seem to fully work
body: <p>I just started using Eigen 3.2.0 on QTCreator 2.8.1. 
  All is well but code completion only seems to partially work – I get a bunch of options, but many are missing. Here’s a screenshot of an uber simple code snippet – as you’ll see, the list of available functions for m0 is limited (e.g. block() and col() are missing but cols() is there).</p>
  
  <p><img src="https://i.stack.imgur.com/bi7J1.png" alt="enter image description here"></p>
  
  <p>However, all of these functions seem to be usable – the code compiles and runs properly. This is a problem, given that Eigen has a lot of functionalities, and I’m nowhere close to remembering the name for all of them. I tried a bunch of random things, but am not quite sure what’s going on. Here’s the code from my .pro project file, in case</p>
  
  <pre><code>QT       += core
  QT       -= gui
  TARGET = LearnEigen
  CONFIG   += console
  CONFIG   -= app_bundle
  TEMPLATE = app
  SOURCES += main.cpp
  INCLUDEPATH += ..\..\Libs\Eigen
  </code></pre>
  
  <p>Would be forever thankful for any advice or pointers to other threads that may have addressed this.
  thank you!</p>