Rollup merge of #98165 - WaffleLapkin:once_things_renamings, r=m-ou-se

once cell renamings

This PR does the renamings proposed in https://github.com/rust-lang/rust/issues/74465#issuecomment-1153703128

- Move/rename `lazy::{OnceCell, Lazy}` to `cell::{OnceCell, LazyCell}`
- Move/rename `lazy::{SyncOnceCell, SyncLazy}` to `sync::{OnceLock, LazyLock}`

(I used `Lazy...` instead of `...Lazy` as it seems to be more consistent, easier to pronounce, etc)

```@rustbot``` label +T-libs-api -T-libs

1 files changed, 2 insertions, 2 deletions

diff --git a/clippy_utils/src/lib.rs b/clippy_utils/src/lib.rs
index 73c1bdd0e3f..5106c39b5c6 100644
--- a/clippy_utils/src/lib.rs
+++ b/clippy_utils/src/lib.rs
@@ -64,7 +64,7 @@ pub use self::hir_utils::{
 
 use std::collections::hash_map::Entry;
 use std::hash::BuildHasherDefault;
-use std::lazy::SyncOnceCell;
+use std::sync::OnceLock;
 use std::sync::{Mutex, MutexGuard};
 
 use if_chain::if_chain;
@@ -2080,7 +2080,7 @@ pub fn is_hir_ty_cfg_dependant(cx: &LateContext<'_>, ty: &hir::Ty<'_>) -> bool {
     false
 }
 
-static TEST_ITEM_NAMES_CACHE: SyncOnceCell<Mutex<FxHashMap<LocalDefId, Vec<Symbol>>>> = SyncOnceCell::new();
+static TEST_ITEM_NAMES_CACHE: OnceLock<Mutex<FxHashMap<LocalDefId, Vec<Symbol>>>> = OnceLock::new();
 
 fn with_test_item_names<'tcx>(tcx: TyCtxt<'tcx>, module: LocalDefId, f: impl Fn(&[Symbol]) -> bool) -> bool {
     let cache = TEST_ITEM_NAMES_CACHE.get_or_init(|| Mutex::new(FxHashMap::default()));