Fix EsLint Brackets (error markup 'const').

node_modules/rxjs/_esm2015/ajax/index.js

@@ -0,0 +1,3 @@
+export { ajax } from '../internal/observable/dom/ajax';
+export { AjaxResponse, AjaxError, AjaxTimeoutError } from '../internal/observable/dom/AjaxObservable';
+//# sourceMappingURL=index.js.map

node_modules/rxjs/_esm2015/ajax/index.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sources":["../../src/ajax/index.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,IAAI,EAAE,MAAM,iCAAiC,CAAC;AACvD,OAAO,EAAe,YAAY,EAAE,SAAS,EAAE,gBAAgB,EAAE,MAAM,2CAA2C,CAAC"}