title: Meaning of symbols in the Debug area from Xcode
body: <p>What do the symbols that are at the left in the Debug Area from the XCode mean? i, A, L, E, etc...</p>
  
  <p><img src="https://i.stack.imgur.com/oRrZx.png" alt="snapshot from Debug Area"></p>
  
  <p>I was looking for that information in the Apple docs (<a href="http://developer.apple.com/library/mac/#recipes/xcode_help-debug_navigator/articles/about_debug_navigator.html" rel="noreferrer">here</a> and <a href="http://developer.apple.com/library/mac/#recipes/xcode_help-debugger/articles/about_debug_area.html#//apple_ref/doc/uid/TP40009986-CH3-SW1" rel="noreferrer">here</a>, basicly), but could not find it. </p>