Auto merge of #142028 - matthiaskrgr:rollup-rawl1zo, r=matthiaskrgr

Rollup of 7 pull requests

Successful merges:

 - rust-lang/rust#141271 (Streamline some attr parsing APIs)
 - rust-lang/rust#141570 (Fix incorrect eq_unspanned in TokenStream)
 - rust-lang/rust#141893 (remove `f16: From<u16>`)
 - rust-lang/rust#141924 (Lightly tweak docs for BTree{Map,Set}::extract_if)
 - rust-lang/rust#141939 (exact_div: add tests)
 - rust-lang/rust#141959 (Add more missing 2015 edition directives)
 - rust-lang/rust#142007 (Improve some `Visitor` comments.)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

clippy_utils/src/ast_utils/mod.rs

@@ -960,5 +960,7 @@ pub fn eq_attr_args(l: &AttrArgs, r: &AttrArgs) -> bool {
 }
 
 pub fn eq_delim_args(l: &DelimArgs, r: &DelimArgs) -> bool {
-    l.delim == r.delim && l.tokens.eq_unspanned(&r.tokens)
+    l.delim == r.delim
+        && l.tokens.len() == r.tokens.len()
+        && l.tokens.iter().zip(r.tokens.iter()).all(|(a, b)| a.eq_unspanned(b))
 }