Rollup merge of #85650 - scottmcm:adjust-adjustment-docs, r=jyn514
Rollup merge of #85650 - scottmcm:adjust-adjustment-docs, r=jyn514

Add some backticks to the `rustc_middle::ty::adjustment::Adjustment` docs

A few `[i32]`s are getting picked up as intra-doc links, rather than showing as slices, making the sentence quite confusing.

See https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/ty/adjustment/struct.Adjustment.html

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