One parameter of a signature (position implied by array order): nameIdx, [nameIdx, props], or
[nameIdx, props, defaultIdx] (indices into the global dictionary). props is the ArgProp bitfield,
whose two lowest bits are the pre-existing Forced/NoDefault, so old bundles read the same.
One parameter of a signature (position implied by array order):
nameIdx,[nameIdx, props], or[nameIdx, props, defaultIdx](indices into the global dictionary).propsis the ArgProp bitfield, whose two lowest bits are the pre-existingForced/NoDefault, so old bundles read the same.