title: Can't inspect Swift variables in LLDB when running on device
body: <p>If I try to print a variable in lldb with <code>po self</code>, for example, I get:</p>
  
  <pre><code>(lldb) po self
  error: Couldn't lookup symbols:
    __TMC4skyq12BlahBlahBlah
  </code></pre>
  
  <p>In fact, I literally can't evaluate / print anything from lldb:</p>
  
  <pre><code>(lldb) expression "Hello World!"
  error: Couldn't lookup symbols:
    __TMC4skyq12BlahBlahBlah
  (lldb) p "Hello World!"
  error: Couldn't lookup symbols:
    __TMC4skyq12BlahBlahBlah
  </code></pre>
  
  <p>How can I fix this? I'm using: Xcode 7.3 (7D175).</p>
  
  <h1>Observations</h1>
  
  <ul>
  <li>This only seems to happen when I run on the physical device. On the simulator, the error doesn't happen. </li>
  <li>I've also created an empty standard project, and inspection works fine in this.</li>
  <li>It only happens in the Swift parts of the codebase. If I have a breakpoint in obj-c code, lldb is able to print symbols from there.</li>
  </ul>