chore: drop stale maintainer_gap repros for closed issues (jul04 wave20)

[PurHur]

Summary

• Remove 33 test/repro/maintainer_gap_*.php filing scripts whose linked issues are CLOSED and now guarded by compliance PHPTs or unit tests (Jul 4 batch: Stdlib: procedural date_* wrappers missing (date_format/date_timestamp_get/... ext/date/php_date.c) #9219, Stdlib: str_getcsv()/fgetcsv() — escape=enclosure " parses quoted fields wrong (ext/standard/file.c) #9303, Stdlib: ArrayIterator/ArrayObject::uasort()/uksort() missing — PHP 8.4 SPL (ext/spl/spl_array.c) #9356, Stdlib: session_name() must refuse rename after headers sent — returns false + warning (ext/session/session.c) #9376, Stdlib: bcadd()/bcsub()/bcmul() optional rounding_mode 4th parameter missing — PHP 8.4 (ext/bcmath/bcmath.c) #9946, Stdlib: get_included_files()/get_required_files() -r mode — phantom 'Standard input code' entry (ext/standard/basic_functions.c) #10279, Tooling: capability matrix VM=yes for version-gated builtins not registered on reference profile (script/capability-matrix.php) #11904, Regression: array_replace() inline array_keys() overlay — drops string-key base entries (ext/standard/array.c) #13759, Regression: usort()/uasort() equal-comparator ties — key order differs from Zend (ext/standard/array.c) #13762, Regression: array_multisort() inline first array + by-ref companion — companion reorder wrong (ext/standard/array.c) #15151, Language: typed class constants syntax missing — public const string (re-#12994, Zend/zend_compile.c) #15367, Stdlib: DateMalformedIntervalException / DateMalformedPeriodException missing — PHP 8.3 date hierarchy (ext/date) #15382, Regression: fputcsv() escape parameter — backslash escape doubles output (ext/standard/file.c) #15383, Stdlib: sodium_crypto_aead_xchacha20poly1305_ietf_* missing — XChaCha20-Poly1305 AEAD (ext/sodium/libsodium.c) #15429–Regression: sys_getloadavg() nested call argument — returns null not load array (ext/standard/basic_functions.c) #15438, Regression: array_filter() FCC callback + inline nested haystack — array operand null (ext/standard/array.c) #15490, Language: method call on scalar/null — uncatchable LogicException not Error (Zend/zend_execute.c) #15529, Stdlib: sodium_crypto_sign* missing — Ed25519 sign/open/detached API (ext/sodium/libsodium.c) #15541–Stdlib: sodium_crypto_aead_aes256gcm_encrypt/decrypt missing — AES-GCM AEAD (ext/sodium/libsodium.c) #15542, Regression: date_sun_info() sunrise/sunset timestamps differ from Zend (ext/date/php_date.c) #15629, Regression: class_alias() alias ::class constant resolves to canonical name not alias (Zend/zend_constants.c) #15645–Regression: var_dump(property_exists(), isset()) on uninitialized typed property fatals (Zend/zend_builtin_functions.c) #15646, Stdlib: Number class — PHP 8.4 arbitrary-precision OOP missing (ext/standard/number.c) #15705, Regression: unset() dynamic property — property_exists() still true after removal (ext/standard/basic_functions.c) #15750, Regression: var_export() array literal — inline call element exports callee return not array (ext/standard/var.c) #15783, Language: multi-arg call first ternary operand misbound when second operand is ternary (Zend/zend_compile.c) #15816–Language: try/catch/else PHP 8.4 syntax rejected on forward profile (Zend/zend_language_parser.y) #15817, Language: static local anonymous class initializer accepted — Zend fatal constant expression (Zend/zend_compile.c) #15873, Language: match() bare enum case arm resolves — must Error like undefined constant (Zend/zend_compile.c) #15875, Regression: number_format() negative $decimals — rounds to 0 not Zend 2 (ext/standard/number_format.c) #15917).
• Follows wave19 (chore: drop stale maintainer_gap repros for closed issues (jul03 wave19) #15349); no open-issue repros touched (maintainer_gap_grapheme_str_split_without_intl.php kept for open Stdlib: grapheme_str_split() without ext/intl — function_exists true, Zend false (ext/intl/grapheme) #11825).

Hygiene scan (this run)

• Open PRs: 2 (Fix honest inventory argv compile spine (#15597) #15615 honest spine, WIP: user-script AOT multipart refresh (#15624) #15679 AOT multipart WIP).
• Stale agent/* branches (>7d, no open PR, closed issues): 15 pruned remotely (Jun 25–26 batch).
• Duplicate open issues: none found by title dedup.
• Local branch: deleted merged chore/cleanup-stale-repros-jul03-wave19.

Refs #1492.

Test plan

• Deletions only — no code paths changed
• ./script/ci-fast.sh (inventory + spine + VM driver probe)

Made with Cursor

[cursor]

Bugbot is not enabled for your account, so this pull request was not reviewed.

Enable Bugbot in the Cursor dashboard to get automatic reviews on future PRs.

[PurHur]

Post-merge hygiene log (cleanup bot Jul 4):

• Pruned 15 stale agent/* remote branches (>7d, closed issues, no open PR).
• Pruned 3 merged chore/cleanup-stale-repros-jul0*-wave* branches.
• Deleted local chore/cleanup-stale-repros-jul03-wave19.
• Could not comment on Epic: Self-host critical path — compiler compiles itself (M3→M5) #1492 (GitHub disables comments on issues with >2500 comments).

Protected: open PRs #15615, #15679; repro maintainer_gap_grapheme_str_split_without_intl.php (#11825); 47 recent agent/* branches (<7d).