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- // MIR for `if_const_debug` before SingleUseConsts
+ // MIR for `if_const_debug` after SingleUseConsts
  
  fn if_const_debug() -> i32 {
      let mut _0: i32;
      let _1: bool;
      let _2: ();
      let mut _3: bool;
      scope 1 {
-         debug my_bool => _1;
+         debug my_bool => const <T as MyTrait>::ASSOC_BOOL;
      }
  
      bb0: {
          StorageLive(_1);
-         _1 = const <T as MyTrait>::ASSOC_BOOL;
+         nop;
          StorageLive(_2);
          _2 = do_whatever() -> [return: bb1, unwind continue];
      }
  
      bb1: {
          StorageDead(_2);
          StorageLive(_3);
-         _3 = copy _1;
+         _3 = const <T as MyTrait>::ASSOC_BOOL;
          switchInt(move _3) -> [0: bb3, otherwise: bb2];
      }
  
      bb2: {
          _0 = const 7_i32;
          goto -> bb4;
      }
  
      bb3: {
          _0 = const 42_i32;
          goto -> bb4;
      }
  
      bb4: {
          StorageDead(_3);
          StorageDead(_1);
          return;
      }
  }