[XLA] Fix a type mismatch in HloEvaluator.

The reproduction comes from jax-ml/jax#18103 but I'm having trouble reproducing it in a unit test.

If this code path is triggered, a tuple with the incorrect size is returned.

Fixes jax-ml/jax#18106

PiperOrigin-RevId: 573666720

xla/hlo/evaluator/hlo_evaluator.cc

@@ -3460,6 +3460,7 @@ StatusOr<Literal> TryParseAndEvaluateWhileInductionVar(
       const Shape& shape = while_hlo->shape().tuple_shapes(i);
       while_result_elements[i] =
           Literal::CreateFromShapeWithUnknownLeafArrays(shape);
+      while_result_element_ptrs.push_back(&while_result_elements[i]);
     }
   }
   return LiteralUtil::MakeTuple(while_result_element_ptrs);