fix(*): export noop function from rxjs-imports in order to force ngc to generate a proper metadata.json file. Closes #175 (#177)

Author: Georgii Rychko

package.json

@@ -49,7 +49,7 @@
     "webdriver-update": "node ./node_modules/protractor/bin/webdriver-manager update"
   },
   "devDependencies": {
-    "@angular/cli": "1.5.2",
+    "@angular/cli": "1.5.4",
     "@angular/common": "5.0.2",
     "@angular/compiler": "5.0.2",
     "@angular/compiler-cli": "5.0.2",

src/rxjs-imports.ts

@@ -1,3 +1,6 @@
 import 'rxjs/add/operator/filter';
 import 'rxjs/add/observable/of';
 
+// This forces angular compiler to generate a "rxjs-imports.metadata.json"
+// with a valid metadata instead of "[null]"
+export const noop = () => {};