"CDB process terminated unexpectedly" when program returns quickly

1. Create a new Qt Console Application project.
2. Replace the main function's body:

   #include <QCoreApplication>
   
   int main(int argc, char *argv[])
   {
       return 0;
   }
   

3. In Run settings, disable "Run in terminal".
4. Build this with MSVC and run it in the debugger.
   You'll see an error message pop up: "The CDB process terminated unexpectedly (exit code 0).

When you do the same with Creator 3.5, this warning does not appear. This is because of QTCREATORBUG-15455. When you uncheck "Enable QML debugging and profiling", Creator 3.6 doesn't show the warning, either.

Creator should be able to handle a quickly returning program.

Found by Squish test tst_cli_output_console.