Debugger: Show progress indicator while updating locals.

Change-Id: I4b26cbe71f5936f367f9add2b3a6c812446835d8
Reviewed-by: Christian Stenger <christian.stenger@theqtcompany.com>
Reviewed-by: hjk <hjk@theqtcompany.com>

src/plugins/debugger/pdb/pdbengine.cpp

@@ -664,6 +664,7 @@ void PdbEngine::updateLocals()
     //m_lastDebuggableCommand = cmd;
     //m_lastDebuggableCommand.args.replace("\"passexceptions\":0", "\"passexceptions\":1");
 
+    watchHandler()->updateRequested();
     runCommand(cmd);
 }