feat(@schematics/angular): update TypeScript to 3.1

Author: alan-agius4

packages/schematics/angular/package.json

@@ -11,6 +11,6 @@
   "dependencies": {
     "@angular-devkit/core": "0.0.0",
     "@angular-devkit/schematics": "0.0.0",
-    "typescript": "3.0.1"
+    "typescript": "3.1.1"
   }
 }

yarn.lock

@@ -7746,10 +7746,6 @@ typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
 
-[email protected]:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.0.1.tgz#43738f29585d3a87575520a4b93ab6026ef11fdb"
-
 [email protected], typescript@~3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.1.1.tgz#3362ba9dd1e482ebb2355b02dfe8bcd19a2c7c96"