- // MIR for `id_try` before SimplifyArmIdentity
+ // MIR for `id_try` after SimplifyArmIdentity
  
  fn id_try(_1: Result<u8, i32>) -> Result<u8, i32> {
      debug r => _1;                       // in scope 0 at $DIR/simplify-arm.rs:23:11: 23:12
      let mut _0: std::result::Result<u8, i32>; // return place in scope 0 at $DIR/simplify-arm.rs:23:34: 23:49
      let _2: u8;                          // in scope 0 at $DIR/simplify-arm.rs:24:9: 24:10
      let mut _3: std::result::Result<u8, i32>; // in scope 0 at $DIR/simplify-arm.rs:24:13: 24:15
      let mut _4: std::result::Result<u8, i32>; // in scope 0 at $DIR/simplify-arm.rs:24:13: 24:14
      let mut _5: isize;                   // in scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
      let _6: i32;                         // in scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
      let mut _7: !;                       // in scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
      let mut _8: i32;                     // in scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
      let mut _9: i32;                     // in scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
      let _10: u8;                         // in scope 0 at $DIR/simplify-arm.rs:24:13: 24:15
      let mut _11: u8;                     // in scope 0 at $DIR/simplify-arm.rs:25:8: 25:9
      scope 1 {
-         debug x => _2;                   // in scope 1 at $DIR/simplify-arm.rs:24:9: 24:10
+         debug x => ((_0 as Ok).0: u8);   // in scope 1 at $DIR/simplify-arm.rs:24:9: 24:10
      }
      scope 2 {
-         debug err => _6;                 // in scope 2 at $DIR/simplify-arm.rs:24:14: 24:15
+         debug err => ((_0 as Err).0: i32); // in scope 2 at $DIR/simplify-arm.rs:24:14: 24:15
          scope 3 {
              scope 7 (inlined <i32 as From<i32>>::from) { // at $DIR/simplify-arm.rs:24:14: 24:15
-                 debug t => _9;           // in scope 7 at $DIR/simplify-arm.rs:24:14: 24:15
+                 debug t => ((_0 as Err).0: i32); // in scope 7 at $DIR/simplify-arm.rs:24:14: 24:15
              }
              scope 8 (inlined <Result<u8, i32> as Try>::from_error) { // at $DIR/simplify-arm.rs:24:13: 24:15
-                 debug v => _8;           // in scope 8 at $DIR/simplify-arm.rs:24:13: 24:15
+                 debug v => ((_0 as Err).0: i32); // in scope 8 at $DIR/simplify-arm.rs:24:13: 24:15
                  let mut _12: i32;        // in scope 8 at $DIR/simplify-arm.rs:24:13: 24:15
              }
          }
      }
      scope 4 {
-         debug val => _10;                // in scope 4 at $DIR/simplify-arm.rs:24:13: 24:15
+         debug val => ((_0 as Ok).0: u8); // in scope 4 at $DIR/simplify-arm.rs:24:13: 24:15
          scope 5 {
          }
      }
      scope 6 (inlined <Result<u8, i32> as Try>::into_result) { // at $DIR/simplify-arm.rs:24:13: 24:15
          debug self => _4;                // in scope 6 at $DIR/simplify-arm.rs:24:13: 24:15
      }
  
      bb0: {
          StorageLive(_2);                 // scope 0 at $DIR/simplify-arm.rs:24:9: 24:10
          StorageLive(_3);                 // scope 0 at $DIR/simplify-arm.rs:24:13: 24:15
          StorageLive(_4);                 // scope 0 at $DIR/simplify-arm.rs:24:13: 24:14
          _4 = _1;                         // scope 0 at $DIR/simplify-arm.rs:24:13: 24:14
          _3 = move _4;                    // scope 6 at $DIR/simplify-arm.rs:24:13: 24:15
          StorageDead(_4);                 // scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
          _5 = discriminant(_3);           // scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
          switchInt(move _5) -> [0_isize: bb1, 1_isize: bb3, otherwise: bb2]; // scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
      }
  
      bb1: {
-         StorageLive(_10);                // scope 0 at $DIR/simplify-arm.rs:24:13: 24:15
-         _10 = ((_3 as Ok).0: u8);        // scope 0 at $DIR/simplify-arm.rs:24:13: 24:15
-         _2 = _10;                        // scope 5 at $DIR/simplify-arm.rs:24:13: 24:15
-         StorageDead(_10);                // scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
+         _0 = move _3;                    // scope 1 at $DIR/simplify-arm.rs:25:5: 25:10
          StorageDead(_3);                 // scope 0 at $DIR/simplify-arm.rs:24:15: 24:16
-         StorageLive(_11);                // scope 1 at $DIR/simplify-arm.rs:25:8: 25:9
-         _11 = _2;                        // scope 1 at $DIR/simplify-arm.rs:25:8: 25:9
-         ((_0 as Ok).0: u8) = move _11;   // scope 1 at $DIR/simplify-arm.rs:25:5: 25:10
-         discriminant(_0) = 0;            // scope 1 at $DIR/simplify-arm.rs:25:5: 25:10
-         StorageDead(_11);                // scope 1 at $DIR/simplify-arm.rs:25:9: 25:10
          StorageDead(_2);                 // scope 0 at $DIR/simplify-arm.rs:26:1: 26:2
          goto -> bb4;                     // scope 0 at $DIR/simplify-arm.rs:26:2: 26:2
      }
  
      bb2: {
          unreachable;                     // scope 0 at $DIR/simplify-arm.rs:24:13: 24:15
      }
  
      bb3: {
-         StorageLive(_6);                 // scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
-         _6 = ((_3 as Err).0: i32);       // scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
-         StorageLive(_8);                 // scope 3 at $DIR/simplify-arm.rs:24:14: 24:15
-         StorageLive(_9);                 // scope 3 at $DIR/simplify-arm.rs:24:14: 24:15
-         _9 = _6;                         // scope 3 at $DIR/simplify-arm.rs:24:14: 24:15
-         _8 = move _9;                    // scope 7 at $DIR/simplify-arm.rs:24:14: 24:15
-         StorageDead(_9);                 // scope 3 at $DIR/simplify-arm.rs:24:14: 24:15
-         StorageLive(_12);                // scope 8 at $DIR/simplify-arm.rs:24:13: 24:15
-         _12 = move _8;                   // scope 8 at $DIR/simplify-arm.rs:24:13: 24:15
-         ((_0 as Err).0: i32) = move _12; // scope 8 at $DIR/simplify-arm.rs:24:13: 24:15
-         discriminant(_0) = 1;            // scope 8 at $DIR/simplify-arm.rs:24:13: 24:15
-         StorageDead(_12);                // scope 8 at $DIR/simplify-arm.rs:24:13: 24:15
-         StorageDead(_8);                 // scope 3 at $DIR/simplify-arm.rs:24:14: 24:15
-         StorageDead(_6);                 // scope 0 at $DIR/simplify-arm.rs:24:14: 24:15
+         _0 = move _3;                    // scope 8 at $DIR/simplify-arm.rs:24:13: 24:15
          StorageDead(_3);                 // scope 0 at $DIR/simplify-arm.rs:24:15: 24:16
          StorageDead(_2);                 // scope 0 at $DIR/simplify-arm.rs:26:1: 26:2
          goto -> bb4;                     // scope 0 at $DIR/simplify-arm.rs:26:2: 26:2
      }
  
      bb4: {
          return;                          // scope 0 at $DIR/simplify-arm.rs:26:2: 26:2
      }
  }