agra 7b1d8ceb83 P5.7 Step D: re-express metatype define() as sx over register_type ...

define(handle, info) is now an ordinary sx fn in modules/std/meta.sx: it matches
the TypeInfo union and calls the abi(.compiler) register_type primitive with the
matching kind code, decoding the variant/field/element list into []Member. An
all-void enum variant set registers as kind 2 (actual enum); any payload variant
as kind 3 (tagged_union).

To support matching the TypeInfo VALUE in the comptime VM, added tagged-union
value support: kindOf now treats tagged_union as a by-address aggregate, enum_tag
reads the tag word at offset 0, and a new enum_payload arm reads the active
payload at tag_size (both bail loudly on backing_type unions, whose layout
differs). register_type's duplicate-name diagnostics now include the offending
name. Dropped the define interception in tryLowerReflectionCall; the .enum(...)
arg infers TypeInfo from the sx fn's param type via the ordinary call path.

Regenerated 1179/1180 diagnostic snapshots (same span/line; the message now
names register_type instead of define()). define/type_info builtins still exist
pending dead-code removal.

2026-06-19 21:09:18 +03:00

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