refactor(opcache): replace path-scoped PHPStan ignores with struct shapes

phpstan.dist.neon

@@ -68,67 +68,6 @@ parameters:
         -
             identifier: offsetAccess.nonOffsetAccessible
             path: src/Type/StructArray.php
-        # PayloadRelocator is the file-cache pointer-surgery machinery: it walks
-        # engine structs field by field through FFI\CData, so a chained access
-        # (`$zval->u1->v->type`) resolves to `mixed` after the first hop and the
-        # arithmetic/casts on those reads cannot be statically typed. The FFI
-        # blast radius is confined to this one audited file (AGENTS.md); every
-        # path is covered by the byte-identity and execute-from-cache tests.
-        -
-            identifier: property.nonObject
-            path: src/OpCache/PayloadRelocator.php
-        -
-            identifier: binaryOp.invalid
-            path: src/OpCache/PayloadRelocator.php
-        -
-            identifier: cast.int
-            path: src/OpCache/PayloadRelocator.php
-        -
-            identifier: argument.type
-            path: src/OpCache/PayloadRelocator.php
-        # ScriptSerializer is the second audited pointer-surgery file (the
-        # persist-from-graph writer, issue #117): the same CData field walking
-        # as PayloadRelocator, covered by the rebuild/graft execute-from-cache
-        # tests and the relocator round-trip identity checks.
-        -
-            identifier: property.nonObject
-            path: src/OpCache/ScriptSerializer.php
-        -
-            identifier: binaryOp.invalid
-            path: src/OpCache/ScriptSerializer.php
-        -
-            identifier: cast.int
-            path: src/OpCache/ScriptSerializer.php
-        -
-            identifier: argument.type
-            path: src/OpCache/ScriptSerializer.php
-        # ReflectionOpcacheFile is the CData facade over the relocated script:
-        # it reads embedded engine structs (script.filename, function/class
-        # tables) that resolve to `mixed` after the first CData hop; since
-        # issue #117 it also carries the graft plumbing (image hashtable
-        # regrowth), which does the same CData arithmetic.
-        -
-            identifier: property.nonObject
-            path: src/OpCache/ReflectionOpcacheFile.php
-        -
-            identifier: argument.type
-            path: src/OpCache/ReflectionOpcacheFile.php
-        -
-            identifier: binaryOp.invalid
-            path: src/OpCache/ReflectionOpcacheFile.php
-        -
-            identifier: cast.int
-            path: src/OpCache/ReflectionOpcacheFile.php
-        -
-            identifier: assignOp.invalid
-            path: src/OpCache/ReflectionOpcacheFile.php
-        # BoundsValidationTest crafts hostile payloads by poking engine-struct
-        # pointer fields through FFI\CData (the address of a filename/HashTable
-        # slot to overwrite), the same pointer surgery PayloadRelocator does -
-        # FFI::addr() on a CData field read resolves to mixed here.
-        -
-            identifier: argument.type
-            path: tests/OpCache/BoundsValidationTest.php
         # The dimension tests exist to prove that a plain `count($object)` reaches the engine's
         # count_elements handler on a class that never declared the count itself. Rewriting them
         # as assertCount() would measure PHPUnit's Count constraint instead of the language