As suggested by john.page in #mongosh slack channel, we might want to consider to hide some deprecated object properties in mongosh autosuggest.

For example typing db.<tab> currently gives the following output:

> db.<tab>
db.__defineGetter__          db.__defineSetter__
db.__lookupGetter__          db.__lookupSetter__
db.__proto__                 db.constructor
db.hasOwnProperty            db.isPrototypeOf
db.propertyIsEnumerable      db.toLocaleString
db.toString                  db.valueOf
db.getMongo                  db.getName
...

And maybe we can hide things like defineGetter, lookupGetter, defineSetter, lookupSetter, proto as they are at the very top of the results, not that helpful, and are not recommended for use anyway