message: adding function aliases @ for abs and ^ for pow
diff: @@ -119,6 +119,8 @@ void AbsFun::RegisterFunction(BuiltinFunctions &set) {
  }
  }
  set.AddFunction(abs);
  + abs.name = "@";
  + set.AddFunction(abs);
  }
  //===--------------------------------------------------------------------===//
  @@ -558,6 +560,8 @@ void PowFun::RegisterFunction(BuiltinFunctions &set) {
  set.AddFunction(power_function);
  power_function.name = "**";
  set.AddFunction(power_function);
  + power_function.name = "^";
  + set.AddFunction(power_function);
  }
  //===--------------------------------------------------------------------===//
  