tests/mir-opt/gvn_copy_aggregate.all_copy_mut.GVN.diff

- // MIR for `all_copy_mut` before GVN
+ // MIR for `all_copy_mut` after GVN
  
  fn all_copy_mut(_1: &mut AllCopy) -> AllCopy {
      debug mut_v => _1;
      let mut _0: AllCopy;
      let _2: &AllCopy;
      let mut _6: i32;
      let mut _7: u64;
      let mut _8: [i8; 3];
      scope 1 {
          debug v => _2;
          let _3: i32;
          scope 2 {
              debug a => _3;
              let _4: u64;
              scope 3 {
                  debug b => _4;
                  let _5: [i8; 3];
                  scope 4 {
                      debug c => _5;
                  }
              }
          }
      }
  
      bb0: {
          StorageLive(_2);
          _2 = &(*_1);
-         StorageLive(_3);
+         nop;
          _3 = copy ((*_2).0: i32);
-         StorageLive(_4);
+         nop;
          _4 = copy ((*_2).1: u64);
-         StorageLive(_5);
+         nop;
          _5 = copy ((*_2).2: [i8; 3]);
          ((*_1).0: i32) = const 0_i32;
          StorageLive(_6);
          _6 = copy _3;
          StorageLive(_7);
          _7 = copy _4;
          StorageLive(_8);
          _8 = copy _5;
-         _0 = AllCopy { a: move _6, b: move _7, c: move _8 };
+         _0 = AllCopy { a: copy _3, b: copy _4, c: copy _5 };
          StorageDead(_8);
          StorageDead(_7);
          StorageDead(_6);
-         StorageDead(_5);
-         StorageDead(_4);
-         StorageDead(_3);
+         nop;
+         nop;
+         nop;
          StorageDead(_2);
          return;
      }
  }