Upgrade typescript to last working version

Author: kondi

package.json

@@ -29,6 +29,6 @@
     "@angular/cli": "1.7.0-rc.0",
     "@angular/compiler-cli": "^5.0.0",
     "@angular/language-service": "^5.0.0",
-    "typescript": "~2.4.2"
+    "typescript": "2.5.3"
   }
 }

yarn.lock

@@ -4854,9 +4854,9 @@ typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
 
-typescript@~2.4.2:
-  version "2.4.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.4.2.tgz#f8395f85d459276067c988aa41837a8f82870844"
+typescript@2.5.3:
+  version "2.5.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.5.3.tgz#df3dcdc38f3beb800d4bc322646b04a3f6ca7f0d"
 
 typescript@~2.6.2:
   version "2.6.2"