Fix comments about ResetNoHandleMark in Deoptimization::fetch_unroll_info() and
Deoptimization::unpack_frames(). fetch_unroll_info() shouldn't mention ResetNoHandleMark
anymore and unpack_frames() needed to be clarified.
Deoptimization::unpack_frames(). fetch_unroll_info() shouldn't mention ResetNoHandleMark
anymore and unpack_frames() needed to be clarified.