fix: strictNullCheck support. (#16389) (#16389)

Fix #16357

Workaround for https://github.com/Microsoft/TypeScript/issues/10078

Closes #16389

PR Close #16389

integration/typings_test_ts22/include-all.ts

@@ -10,6 +10,7 @@ import * as compiler from '@angular/compiler';
 import * as compilerTesting from '@angular/compiler/testing';
 import * as coreTesting from '@angular/core';
 import * as core from '@angular/core/testing';
+import * as forms from '@angular/forms';
 import * as httpTesting from '@angular/http';
 import * as http from '@angular/http/testing';
 import * as platformBrowserTesting from '@angular/platform-browser';
@@ -26,6 +27,7 @@ export default {
   compilerTesting,
   core,
   coreTesting,
+  forms,
   http,
   httpTesting,
   platformBrowser,

integration/typings_test_ts22/package.json

@@ -9,6 +9,7 @@
     "@angular/compiler": "file:../../dist/packages-dist/compiler",
     "@angular/compiler-cli": "file:../../dist/packages-dist/compiler-cli",
     "@angular/core": "file:../../dist/packages-dist/core",
+    "@angular/forms": "file:../../dist/packages-dist/forms",
     "@angular/http": "file:../../dist/packages-dist/http",
     "@angular/platform-browser": "file:../../dist/packages-dist/platform-browser",
     "@angular/platform-browser-dynamic": "file:../../dist/packages-dist/platform-browser-dynamic",

integration/typings_test_ts22/tsconfig.json

@@ -15,11 +15,10 @@
       "es2015.promise"
     ],
     "types": [],
-    // TODO(i): strictNullChecks should turned on but are temporarily disabled due to #15432
-    "strictNullChecks": false
+    "strictNullChecks": true
   },
   "files": [
     "include-all.ts",
     "node_modules/@types/jasmine/index.d.ts"
   ]
-}
+}