Auto merge of #54732 - cramertj:waker, r=aturon
Auto merge of #54732 - cramertj:waker, r=aturon

LocalWaker and Waker cleanups

r? @aturon

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