[TypeDeclaration] Split ParamTypeByMethodCallTypeRector into Object, Scalar and Array rules

[TomasVotruba]

Why

ParamTypeByMethodCallTypeRector inferred every param type group at once (objects, scalars, arrays, unions). This splits it so each type group is owned by a focused, independently toggleable rule.

What

Shared engine extracted into AbstractParamTypeByMethodCallTypeRector (caller matching, guards, param loop). Each concrete rule narrows the change to a disjoint group via isMatchingParamType(). Types are null-stripped first, so nullable variants route to their own group.

Rule	Owns	Predicate
ObjectParamTypeByMethodCallTypeRector	object types (incl. nullable)	removeNull()->isObject()
ScalarParamTypeByMethodCallTypeRector	string/int/float/bool	removeNull()->isScalar()
ArrayParamTypeByMethodCallTypeRector	array types (incl. nullable)	removeNull()->isArray()
ParamTypeByMethodCallTypeRector (kept)	remaining compound: cross-group unions (array|string), iterable, callable	not object, scalar, nor array

Examples

ObjectParamTypeByMethodCallTypeRector

 final class UseDependency
 {
     public function __construct(private SomeTypedService $someTypedService) {}

-    public function go($value)
+    public function go(SomeObject $value)
     {
         $this->someTypedService->run($value); // run(SomeObject $object)
     }
 }

ScalarParamTypeByMethodCallTypeRector

 final class UseDependency
 {
     public function __construct(private SomeTypedService $someTypedService) {}

-    public function go($value)
+    public function go(string $value)
     {
         $this->someTypedService->run($value); // run(string $name)
     }
 }

ArrayParamTypeByMethodCallTypeRector

 final class UseDependency
 {
     public function __construct(private SomeTypedService $someTypedService) {}

-    public function go($value)
+    public function go(array $value)
     {
         $this->someTypedService->run($value); // run(array $values)
     }
 }

Notes

• Existing scalar fixtures moved to the scalar rule test dir; pure-array fixtures to the array rule test dir; cross-group union fixtures stay with the old rule.
• Redundant fixtures trimmed — kept one per unique dimension (node type / type shape) plus split-proof skips.
• All four rules registered in TypeDeclarationLevel.