pub fn cross_variant_group_id(
comparison: &CrossVariantComparisonId,
class: CloneClass,
language: Language,
content: &[u8; 16],
) -> CrossVariantGroupIdExpand description
Identify an exact group produced by a cross-build-variant comparison.
content is a position-free digest of the matched token stream. The
comparison id carries the complete origin-variant set, so adding another
compared program cannot silently continue an older comparison’s history.