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

- // MIR for `nest_copy` before GVN
+ // MIR for `nest_copy` after GVN
  
  fn nest_copy(_1: &NestCopy) -> NestCopy {
      debug v => _1;
      let mut _0: NestCopy;
      let _2: i32;
      let mut _6: i32;
      let mut _7: u64;
      let mut _8: [i8; 3];
      let mut _10: i32;
      let mut _11: AllCopy;
      scope 1 {
          debug a => _2;
          let _3: u64;
          scope 2 {
              debug b => _3;
              let _4: [i8; 3];
              scope 3 {
                  debug c => _4;
                  let _5: AllCopy;
                  scope 4 {
                      debug all_copy => _5;
                      let _9: i32;
                      scope 5 {
                          debug d => _9;
                      }
                  }
              }
          }
      }
  
      bb0: {
-         StorageLive(_2);
+         nop;
          _2 = copy (((*_1).1: AllCopy).0: i32);
-         StorageLive(_3);
+         nop;
          _3 = copy (((*_1).1: AllCopy).1: u64);
-         StorageLive(_4);
+         nop;
          _4 = copy (((*_1).1: AllCopy).2: [i8; 3]);
-         StorageLive(_5);
+         nop;
          StorageLive(_6);
          _6 = copy _2;
          StorageLive(_7);
          _7 = copy _3;
          StorageLive(_8);
          _8 = copy _4;
-         _5 = AllCopy { a: move _6, b: move _7, c: move _8 };
+         _5 = copy ((*_1).1: AllCopy);
          StorageDead(_8);
          StorageDead(_7);
          StorageDead(_6);
-         StorageLive(_9);
+         nop;
          _9 = copy ((*_1).0: i32);
          StorageLive(_10);
          _10 = copy _9;
          StorageLive(_11);
-         _11 = move _5;
-         _0 = NestCopy { d: move _10, all_copy: move _11 };
+         _11 = copy _5;
+         _0 = copy (*_1);
          StorageDead(_11);
          StorageDead(_10);
-         StorageDead(_9);
-         StorageDead(_5);
-         StorageDead(_4);
-         StorageDead(_3);
-         StorageDead(_2);
+         nop;
+         nop;
+         nop;
+         nop;
+         nop;
          return;
      }
  }