Foundation: stop false Applied claims from warm apply-patches (#36229)

[PurHur]

Summary

• Part of Foundation: patches/ are no longer the source of truth — apply-patches.sh is 7,508 lines with 85 overlay functions and 412 grep guards, 92 of 183 patches neither apply nor reverse cleanly; fork php-cfg/php-types and keep patches only for php-llvm (patches/, script/apply-patches.sh) #36229: warm script/apply-patches.sh was printing ~17 Applied … lines while mutating zero files (cheap-green overlay messaging).
• Fixed over-escaped \$ / array-shape markers in patch_already_applied, added install_overlay_file (cmp-skip), corrected enum-implements -A30 window, inverted compiler-halt-offset Skip/Applied, and synced committed prelinked TypeReconstructor to the resolver-worklist end-state.
• Does not close Foundation: patches/ are no longer the source of truth — apply-patches.sh is 7,508 lines with 85 overlay functions and 412 grep guards, 92 of 183 patches neither apply nor reverse cleanly; fork php-cfg/php-types and keep patches only for php-llvm (patches/, script/apply-patches.sh) #36229 yet (Done-when still needs the php-cfg/php-types fork); honesty/shrink slice only.

Test plan

• ./script/docker-exec.sh -- bash -lc 'script/apply-patches.sh' → exit 0, 0 Applied lines on warm tree
• ./script/docker-exec.sh -- bash -lc 'script/apply-patches.sh --verify-pristine' → OK, php-llvm stack 27/27
• ./script/phpunit.sh --filter ApplyPatchesTest → 45/45 (1 skipped), includes testWarmApplyPatchesDoesNotClaimAppliedWithoutMutation
• ./script/aot-smoke.sh → 9/9, size gate OK