Function chainInterceptors

test/angular/1.5/angular.js:11749–11760

(promise, interceptors)

      function chainInterceptors(promise, interceptors) {
        for (var i = 0, ii = interceptors.length; i < ii;) {
          var thenFn = interceptors[i++];
          var rejectFn = interceptors[i++];

          promise = promise.then(thenFn, rejectFn);
        }

        interceptors.length = 0;

        return promise;
      }

      function executeHeaderFns(headers, config) {
        var headerContent, processedHeaders = {};