Remove some comments, inline interner fn

compiler/rustc_metadata/src/rmeta/decoder.rs

@@ -382,6 +382,7 @@ impl<'a, 'tcx> TyDecoder for DecodeContext<'a, 'tcx> {
 
     type I = TyInterner<'tcx>;
 
+    #[inline]
     fn interner(&self) -> Self::I {
         TyInterner { tcx: self.tcx() }
     }

compiler/rustc_middle/src/ty/context.rs

@@ -94,43 +94,6 @@ pub struct TyInterner<'tcx> {
     pub tcx: TyCtxt<'tcx>,
 }
 
-/*
-/// We don't ever actually need this. It's only required for derives.
-impl<'tcx> Hash for TyInterner<'tcx> {
-    fn hash<H: Hasher>(&self, _state: &mut H) {}
-}
-
-/// We don't ever actually need this. It's only required for derives.
-impl<'tcx> Ord for TyInterner<'tcx> {
-    fn cmp(&self, _other: &Self) -> Ordering {
-        Ordering::Equal
-    }
-}
-
-/// We don't ever actually need this. It's only required for derives.
-impl<'tcx> PartialOrd for TyInterner<'tcx> {
-    fn partial_cmp(&self, _other: &Self) -> Option<Ordering> {
-        None
-    }
-}
-
-/// We don't ever actually need this. It's only required for derives.
-impl<'tcx> PartialEq for TyInterner<'tcx> {
-    fn eq(&self, _other: &Self) -> bool {
-        false
-    }
-}
-
-/// We don't ever actually need this. It's only required for derives.
-impl<'tcx> Eq for TyInterner<'tcx> {}
-
-impl fmt::Debug for TyInterner<'_> {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "TyInterner")
-    }
-}
-*/
-
 #[allow(rustc::usage_of_ty_tykind)]
 impl<'tcx> Interner for TyInterner<'tcx> {
     type AdtDef = ty::AdtDef<'tcx>;
@@ -1140,6 +1103,7 @@ pub struct GlobalCtxt<'tcx> {
 }
 
 impl<'tcx> TyCtxt<'tcx> {
+    #[inline]
     pub fn interner(self) -> TyInterner<'tcx> {
         TyInterner { tcx: self }
     }

compiler/rustc_middle/src/ty/mod.rs

@@ -463,7 +463,7 @@ pub(crate) struct TyS<'tcx> {
 #[rustc_pass_by_value]
 pub struct Ty<'tcx>(Interned<'tcx, WithStableHash<TyS<'tcx>>>);
 
-const LEAKED_BOOL_TY_ALREADY: std::sync::atomic::AtomicBool =
+static LEAKED_BOOL_TY_ALREADY: std::sync::atomic::AtomicBool =
     std::sync::atomic::AtomicBool::new(false);
 
 /// "Static" bool only used for internal testing.

compiler/rustc_typeck/src/check/intrinsicck.rs

@@ -4,7 +4,7 @@
 use rustc_hir as hir;
 use rustc_index::vec::Idx;
 use rustc_middle::ty::layout::{LayoutError, SizeSkeleton};
-use rustc_middle::ty::{self, FloatTy, InferTy, IntTy, Ty, TyCtxt, TypeFoldable, UintTy, Article};
+use rustc_middle::ty::{self, Article, FloatTy, InferTy, IntTy, Ty, TyCtxt, TypeFoldable, UintTy};
 use rustc_session::lint;
 use rustc_span::{Span, Symbol, DUMMY_SP};
 use rustc_target::abi::{Pointer, VariantIdx};