consolidating iterateOverDateUnits and iterateOverDateUnitsReversed syntax
consolidating iterateOverDateUnits and iterateOverDateUnitsReversed
syntax


Former-commit-id: ec536076d61de092cb0e1a65bb7100044743e5c3 [formerly 94bcb33f872e8afc5e754824f48b256295261b7e]
Former-commit-id: e7ac73c145d2f2e91d9ab8ada203b4cd56af35ab
andrewplummer/Sugar,romancow/Sugar,romancow/Sugar,andrewplummer/Sugar