relax `needless_range_loop` so that it reports only direct indexing
relax `needless_range_loop` so that it reports only direct indexing

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