message: implement const_deallocate as a NOP
diff: @@ -59,6 +59,9 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx
  // See <https://github.com/rust-lang/rust/issues/93935>.
  this.write_null(dest)?;
  }
  + "const_deallocate" => {
  + // complete NOP
  + }
  // Raw memory accesses
  "volatile_load" => {
  