[core] if, do, for package names
**Checks before report**
- [+] check [latest unstable build](https://bintray.com/skylot/jadx/unstable/_latestVersion#files) (maybe issue already fixed)
- [+] search existing issues by exception message
- [+] check [Troubleshooting Q&A](https://github.com/skylot/jadx/wiki/Troubleshooting-Q&A) section on wiki

**Describe error**
Please open the attached APK, and browse to sources. You will see reserved names in root package names e.g. ``` if ```, ``` for ```, ``` do ```

```java
         do.int.if.AffideliceauChablis.m35920a((java.lang.Object) settings, (java.lang.String) "webView.settings");
```

https://drive.google.com/file/d/1FezWyJKTexSoO4lFNDhnRvS7K4elD6bE/view?usp=sharing