chore(circleci): use a github token when running tsd

Also increase the heap size limit as a workaround for
https://github.com/angular/angular/issues/5229

Fixes #6602

circle.yml

@@ -1,6 +1,19 @@
 machine:
   node:
     version: 5.4.1
+
+dependencies:
+  override:
+    - npm install:
+        environment:
+          # Token for tsd to increase github rate limit
+          # See https://github.com/DefinitelyTyped/tsd#tsdrc
+          # This is not hidden using https://circleci.com/docs/fork-pr-builds#details
+          # because those are not visible for pull requests, and those should also be reliable.
+          # This SSO token belongs to github account angular-github-ratelimit-token which has no access
+          # (password is in Valentine)
+          TSD_GITHUB_TOKEN: ef474500309daea53d5991b3079159a29520a40b
+
 test:
   override:
     - npm run build

package.json

@@ -28,7 +28,7 @@
   "scripts": {
     "preinstall": "node tools/analytics/build-analytics start install npm3-install && node tools/analytics/build-analytics start install npm-preinstall && node tools/npm/check-node-modules && node tools/analytics/build-analytics success install npm-preinstall && node tools/analytics/build-analytics start install npm-install-net",
     "postinstall": "node tools/analytics/build-analytics success install npm-install-net && node tools/analytics/build-analytics start install npm-postinstall && node tools/npm/copy-npm-shrinkwrap && node tools/chromedriverpatch.js && webdriver-manager update && bower install && gulp pubget.dart && tsd reinstall --overwrite --clean --config modules/angular2/tsd.json && tsd reinstall --overwrite --clean --config tools/tsd.json && tsd reinstall --overwrite --config modules/angular1_router/tsd.json && node tools/analytics/build-analytics success install npm-postinstall && node tools/analytics/build-analytics success install npm3-install",
-    "build": "gulp build.js",
+    "build": "node --max-old-space-size=2048 ./node_modules/.bin/gulp build.js",
     "test": "gulp test.all.js && gulp test.all.dart"
   },
   "dependencies": {