Auto merge of #136943 - GuillaumeGomez:rollup-amtd3mq, r=GuillaumeGomez

Rollup of 10 pull requests

Successful merges:

 - #136758 (tests: `-Copt-level=3` instead of `-O` in assembly tests)
 - #136761 (tests: `-Copt-level=3` instead of `-O` in codegen tests)
 - #136784 (Nuke `Buffer` abstraction from `librustdoc`, take 2 💣)
 - #136838 (Check whole `Unsize` predicate for escaping bound vars)
 - #136848 (add docs and ut for bootstrap util cache)
 - #136871 (dev-guide: Link to `t-lang` procedures for new features)
 - #136890 (Change swap_nonoverlapping from lang to library UB)
 - #136901 (compiler: give `ExternAbi` truly stable `Hash` and `Ord`)
 - #136907 (compiler: Make middle errors `pub(crate)` and bury the dead code)
 - #136916 (use cc archiver as default in `cc2ar`)

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

1 files changed, 3 insertions, 3 deletions

diff --git a/src/librustdoc/html/render/tests.rs b/src/librustdoc/html/render/tests.rs
index 4a9724a6f84..657cd3c82aa 100644
--- a/src/librustdoc/html/render/tests.rs
+++ b/src/librustdoc/html/render/tests.rs
@@ -1,7 +1,7 @@
 use std::cmp::Ordering;
 
+use super::AllTypes;
 use super::print_item::compare_names;
-use super::{AllTypes, Buffer};
 
 #[test]
 fn test_compare_names() {
@@ -47,8 +47,8 @@ fn test_all_types_prints_header_once() {
     // Regression test for #82477
     let all_types = AllTypes::new();
 
-    let mut buffer = Buffer::new();
+    let mut buffer = String::new();
     all_types.print(&mut buffer);
 
-    assert_eq!(1, buffer.into_inner().matches("List of all items").count());
+    assert_eq!(1, buffer.matches("List of all items").count());
 }