Bump @babel/generator from 7.4.4 to 7.5.5

Bumps [@babel/generator](https://github.com/babel/babel) from 7.4.4 to 7.5.5.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](babel/babel@v7.4.4...v7.5.5)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

package-lock.json

@@ -41,7 +41,7 @@
   "dependencies": {
     "@atom/babel-plugin-chai-assert-async": "1.0.0",
     "@atom/babel7-transpiler": "1.0.0-1",
-    "@babel/generator": "7.4.4",
+    "@babel/generator": "7.5.5",
     "@babel/plugin-proposal-class-properties": "7.4.4",
     "@babel/plugin-proposal-object-rest-spread": "7.4.3",
     "@babel/preset-env": "7.5.4",