Getting package list with "ls /data/data" not working on recent Android versions

I'm not getting autocompletion for package names with Android 12 emulator.

The reason is that this command fails:

```
adb $device_selected shell ls /data/data 2>/dev/null
```

because of a permissions issue:

```
adb shell ls /data/data
ls: /data/data: Permission denied
```

This replacement works fine for me:

```
local apks=$(adb $device_selected shell pm list packages 2>/dev/null | sed "s/package://g" | tr '\n' ' ' | tr -d '\r')
```

Search the package-name autocompletion code for the `/data/data` command and trace how its output becomes the package list. Reproduce the failure on an Android 12 emulator, then verify that package-name completion works using the `pm list packages` output without exposing permission errors.

Written by the indexing model from the issue text.