Rollup merge of #33152 - bwinterton:master, r=steveklabnik
Rollup merge of #33152 - bwinterton:master, r=steveklabnik

Make HashSet::Insert documentation more consistent

I have made the HashSet::Insert documentation more consistent in the use of the term 'value' vs 'key'. Also clarified that if _this_ value is present true is returned, instead of the ambiguous 'a value present'.

r? @steveklabnik

GBGamer/rust,graydon/rust,aidancully/rust,aidancully/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,aidancully/rust,graydon/rust,GBGamer/rust,GBGamer/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,GBGamer/rust,GBGamer/rust,graydon/rust,GBGamer/rust