code: function warnAboutGlobalCode (sandbox, path)
    {
      var msg = csprintf ('yellow', 'Incompatible code found on the global scope!'.red + NL +
        (path ? reportErrorLocation (path) : '') +
        getExplanation (
          'This kind of code will behave differently between release and debug builds.' + NL +
          'You should wrap it in a self-invoking function and/or assign global variables/functions ' +
          'directly to the window object.'
        )
      );
      if (context.verbose) {
        var found = false;
        util.forEachProperty (sandbox, function (k, v)
        {
          if (!found) {
            found = true;
            msg += '  Detected globals:'.yellow + NL;
          }
          msg += (typeof v === 'function' ? '    function '.blue : '    var      '.blue) + k.cyan + NL;
        });
      }
      warn (msg + '>>'.yellow);
    }
docs: Isses a warning about problematic code found on the global scope.
  @param {Object} sandbox
  @param {string} path