Merge pull request #231 from vuejs/feature/add-source-map

chore: add dep

Author: JessicaSachs

package.json

@@ -72,6 +72,7 @@
     "chalk": "^2.1.0",
     "convert-source-map": "^1.6.0",
     "extract-from-css": "^0.4.4",
+    "source-map": "^0.7.3",
     "ts-jest": "^24.0.0"
   },
   "repository": {

yarn.lock

@@ -7600,6 +7600,7 @@ source-map@^0.6.0, source-map@^0.6.1, source-map@~0.6.0, source-map@~0.6.1:
 source-map@^0.7.3:
   version "0.7.3"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.7.3.tgz#5302f8169031735226544092e64981f751750383"
+  integrity sha512-CkCj6giN3S+n9qrYiBTX5gystlENnRW5jZeNLHpe6aue+SrHcG5VYwujhW9s4dY31mEGsxBDrHR6oI69fTXsaQ==
 
 source-map@~0.1.7:
   version "0.1.43"