message: workaround for hoisting of old types
  There are older versions of pulled in by various dependencies, and they lack some critical things. If they get hoisted, our build breaks.
  This is a hack to put the new-enough version at the top-level.
diff: "node": ">= 7.7"
  },
  "dependencies": {
  + "@types/node": "11.13.8",
  "@typescript-eslint/eslint-plugin": "^1.7.0",
  "@typescript-eslint/parser": "^1.7.0",
  "eslint-plugin-ember": "^5.0.0",
  