title: Code review diff/merge tool
body: <p>When going through a code review session we use a diff/merge tool. Sometimes it is needed to <b>Go to definition</b> of a certain function that we examine.<br>
  Currently what we do is go to the file system or the development environment and open the file that contains the function definition.<br>
  It whould be nice to have the option to <b>Go to definition</b> right from the diff/merge tool (as you would from eclipse/visual studio). The expected result is that the file with the function definition from the same revision is opened.</p>
  
  <p>The revision control software we use is Subversion with Tortoise SVN, and we try to find a diff/merge software to achieve this goal.</p>
  
  <p>Any ideas?</p>