Move robust APIs for PLS into robust_client_memory sections. These two entry points are at the intersection of GL_ANGLE_shader_pixel_local_storage and GL_ANGLE_robust_client_memory. Move them into the robust_client_memory section to simplify autogenerated validation. Rerun code generation. Fixed: angleproject:413597061 Change-Id: Icac160dbc7ab4088ee90471af60bb2e5ab3e1b87 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6492427 Auto-Submit: Kenneth Russell <kbr@chromium.org> Reviewed-by: Alexey Knyazev <lexa.knyazev@gmail.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>