fix REAL4_IS_SLOW, fix a few diagnostics, but probably not all: copy _RS surface flux fields to RL field before calling DIAGNOSTICS_FILL when REAL4_IS_SLOW is undefined
fix REAL4_IS_SLOW, fix a few diagnostics, but probably not all: copy
_RS surface flux fields to RL field before calling DIAGNOSTICS_FILL when
REAL4_IS_SLOW is undefined

altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h