title: QtCreator shows "Expression too complex" when debugging with CDB
body: <p><strong>My environment: Qt5.14.2 + QtCreator4.14.2 + MSVC2017</strong></p>
  <p>When I debug programs in QtCreator with CDB, I cannot see the variable's value from using cursor pointing to the variable, but says &quot;Expression too complex&quot;(See the picture below), I googled and test some solutions, including change CDB configurations, download CDB symbols, but none of them works. So hope someone familiar with this could help me out, Thanks for advance.</p>
  <p><a href="https://i.stack.imgur.com/qgP1l.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/qgP1l.png" alt="Debug information" /></a></p>