A Java record's component types produced no edges, so a record's data dependencies
were invisible. The record_declaration handler now emits `references` edges from
each component type (field context; generic_arg for type arguments), skipping
primitives and — via #1518's in-scope type-parameter filtering — the record's own
type parameters. Handles standard, generic, primitive, and varargs components.
Ported from PR #1520 by @oleksii-tumanov (clean 3-way onto v8; builds on #1518).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
