69c9ac074a
- `qLDiagSqrtInv` is only required for the dual solvers. It is now computed as-needed rather than unconditionally. - `mj_solveM2` now requires a new input array `sqrtInvD` which contains the square root of the inverse diagonal D (formerly saved in `qLDiagSqrtInv`). PiperOrigin-RevId: 710805133 Change-Id: I0622d6a8da3882916824e9c10bad9223c122c321