title: VS code snippets not showing on ctrl+space (but user-defined do)
body: <p>I have an issue with VS Code snippets. I've seen a bunch of questions opened about user-defined snippets, but in my case those work: it's the default ones the ones I'm missing. I'm running the latest VS Code with the latest C/C++ extension by MS, in Windows.
  I'm interested specifically in C/C++ snippets. As far as I know, the official C/C++ extension includes them <a href="https://blogs.msdn.microsoft.com/vcblog/2018/05/08/visual-studio-code-cc-extension-may-2018-update-intellisense-configuration-just-got-so-much-easier/" rel="nofollow noreferrer">since May</a>. I set them to appear on top of the suggestions, so it's easier for me to see them, but I can only see my personal ones:</p>
  
  <p><a href="https://i.stack.imgur.com/YkrdI.gif" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/YkrdI.gif" alt="enter image description here"></a></p>
  
  <p>Any ideas why? Am I missing setting something up?</p>