code: function (context) {
              if (context) {
                  if (this.contextBuilder) {
                      context = this.contextBuilder(context);
                  }
                  if (!context.scopeOrder) {
                      context.scopeOrder = this._defaults.scopeOrder;
                  }
                  return context;
              }
              return { scopeOrder: this._defaults.scopeOrder };
          }
docs: @private
  
  Normalizes the context to be one of:
  
  1. a context object that was passed in
  2. the default context
  
  @param {Object} context Context that was passed in
  @return {{scopeOrder: string, filename: ?string}} context object