jackfirth / resyntax / #576

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master: 97%

Pull #843

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Traverse syntax eagerly in syntax-search-everything

`syntax-search-everything` built a lazy stream, layering `stream-lazy`,
`stream-append` and a generated `syntax-parse` search class over every node.
None of its three callers benefit much from laziness — two consume the whole
traversal — and it runs on every syntax object the expander visits, so the
stream machinery costs considerably more than the list it avoids allocating.

Building the list directly cuts analysis time for `xrepl-lib/xrepl/xrepl.rkt`
(1877 lines) from ~78 seconds to ~74 seconds. The traversal still matches
subforms with the same `syntax-parse` patterns `syntax-search` uses, so it walks
improper lists and non-list syntax exactly as before.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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