chore(pkg): update typescript nightly

TheLarkInn · TheLarkInn · commit 8a48a9481067 · 2018-04-20T15:39:23.000-06:00
diff --git a/package.json b/package.json
@@ -63,7 +63,7 @@
     "simple-git": "^1.65.0",
     "sinon": "^2.3.2",
     "style-loader": "^0.19.1",
-    "typescript": "^2.9.0-dev.20180412",
+    "typescript": "^2.9.0-dev.20180420",
     "url-loader": "^0.6.2",
     "val-loader": "^1.0.2",
     "vm-browserify": "~0.0.0",
diff --git a/yarn.lock b/yarn.lock
@@ -4491,9 +4491,9 @@ typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
 
-typescript@^2.9.0-dev.20180412:
-  version "2.9.0-dev.20180412"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.9.0-dev.20180412.tgz#5380b2afb44b720b0d8164f844b90ebd81948a7e"
+typescript@^2.9.0-dev.20180420:
+  version "2.9.0-dev.20180420"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.9.0-dev.20180420.tgz#c828fdf776f95e858fa8f9276eed27ca4c320099"
 
 ua-parser-js@^0.7.9:
   version "0.7.17"
