Add Debug and Clone derives for stable mir datastructures

compiler/rustc_smir/src/stable_mir/mir/body.rs

@@ -1,12 +1,15 @@
+#[derive(Clone, Debug)]
 pub struct Body {
     pub blocks: Vec<BasicBlock>,
 }
 
+#[derive(Clone, Debug)]
 pub struct BasicBlock {
     pub statements: Vec<Statement>,
     pub terminator: Terminator,
 }
 
+#[derive(Clone, Debug)]
 pub enum Terminator {
     Goto {
         target: usize,
@@ -41,21 +44,25 @@ pub enum Terminator {
     },
 }
 
+#[derive(Clone, Debug)]
 pub enum Statement {
     Assign(Place, Operand),
     Nop,
 }
 
+#[derive(Clone, Debug)]
 pub enum Operand {
     Copy(Place),
     Move(Place),
     Constant(String),
 }
 
+#[derive(Clone, Debug)]
 pub struct Place {
     pub local: usize,
 }
 
+#[derive(Clone, Debug)]
 pub struct SwitchTarget {
     pub value: u128,
     pub target: usize,

tests/ui-fulldeps/stable-mir/crate-info.rs

@@ -4,6 +4,7 @@
 // ignore-stage-1
 // ignore-cross-compile
 // ignore-remote
+// edition: 2021
 
 #![feature(rustc_private)]
 
@@ -43,11 +44,11 @@ fn test_stable_mir(tcx: TyCtxt<'_>) {
     assert_eq!(block.statements.len(), 1);
     match &block.statements[0] {
         stable_mir::mir::Statement::Assign(..) => {}
-        _ => panic!(),
+        other => panic!("{other:?}"),
     }
     match &block.terminator {
         stable_mir::mir::Terminator::Return => {}
-        _ => panic!(),
+        other => panic!("{other:?}"),
     }
 }