Derive Copy for VarianceDiagInfo

compiler/rustc_middle/src/ty/sty.rs

@@ -2189,7 +2189,7 @@ impl<'tcx> TyS<'tcx> {
 /// a miscompilation or unsoundness.
 ///
 /// When in doubt, use `VarianceDiagInfo::default()`
-#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
+#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
 pub enum VarianceDiagInfo<'tcx> {
     /// No additional information - this is the default.
     /// We will not add any additional information to error messages.
@@ -2208,7 +2208,7 @@ pub enum VarianceDiagInfo<'tcx> {
     },
 }
 
-#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
+#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
 pub enum VarianceDiagMutKind {
     /// A mutable raw pointer (`*mut T`)
     RawPtr,