fix: settle gaps by slot and size as verify does

scripts/verify.py

@@ -73,6 +73,7 @@ from nativemode import (
     reads_file_contents,
 )
 from validation import (
+    declaration_settles,
     existence_discrepancy,
     destination_owners,
     validated_choice,
@@ -414,40 +415,10 @@ def _candidate_verdict(
         return "settled"
     if outside_gap_scope(file_entry, is_standalone):
         return "skip"
-    if not include_all:
-        # A platform declaring the name the core reads has met the
-        # requirement where the declaration fills the entry's own slot,
-        # whose content the slot arbitration decides, or elsewhere at a size
-        # the core accepts: the builder copies that file to the core's path.
-        # Galaksija's 4 KiB ROM1.BIN does not stand for DOSBox's 32 KiB SC-55
-        # one. The builder copies nothing for an alias, so an alias answers
-        # only where the core reads it: quasi88 reads n88sub.rom or disk.rom
-        # in quasi88/, and System.dat names quasi88/disk.rom. RetroDECK's
-        # root MSX.ROM is not CLK's MSX/MSX.ROM, and RetroBat's 16 KiB MSX
-        # DISK.ROM at the root is not the 256-byte Disk II ROM gsplus also
-        # accepts as c600.rom. The archive answers by its name.
-        if file_entry.get("archive") in declared_names:
-            return "settled"
-        slot = sanitize_pack_path(dest or fname).lower()
-        directory = slot if dest.endswith("/") else slot.rpartition("/")[0]
-        for name in (fname, *file_entry.get("aliases", [])):
-            if name not in declared_names:
-                continue
-            if not isinstance(declared_names, Mapping):
-                return "settled"
-            if name == fname:
-                if any(
-                    where == slot or name_match_size_ok(file_entry, size)
-                    for size, where in declared_names[name]
-                ):
-                    return "settled"
-                continue
-            read_at = f"{directory}/{name}".lower() if directory else name.lower()
-            if any(
-                where == read_at and name_match_size_ok(file_entry, size)
-                for size, where in declared_names[name]
-            ):
-                return "settled"
+    if not include_all and declaration_settles(
+        file_entry, fname, declared_names, dest
+    ):
+        return "settled"
     return "keep"