Google has added mall directories information to the local panel in the search results. If you search for a local mall in your area, you may see a tab for "Directory" which will show you the stores located in that mall, let you search for them by name and browse for them by type.
Here is a screen shot:
Sergey Alakov first spotted this and posted it on Twitter:
Google adds Mall Directory to shopping malls' knowledge panels: https://t.co/zUBgGijwYT cc: @rustybrick @mblumenthal— Sergey Alakov (@sergey_alakov) February 19, 2018
The Android app had features like this for some time but this only came to the local panel the other day. Also, Google has shown indoor mapping in the local panel and I wonder what will come next. But the directory feature is a keeper.
Forum discussion at Twitter.