Fix ObjectType::equals

Author: VincentLanglet

phpstan-baseline.neon

@@ -1473,12 +1473,6 @@ parameters:
 			count: 1
 			path: src/Type/ObjectShapeType.php
 
-		-
-			rawMessage: 'Doing instanceof PHPStan\Type\Enum\EnumCaseObjectType is error-prone and deprecated. Use Type::getEnumCases() instead.'
-			identifier: phpstanApi.instanceofType
-			count: 1
-			path: src/Type/ObjectType.php
-
 		-
 			rawMessage: Doing instanceof PHPStan\Type\Generic\GenericObjectType is error-prone and deprecated.
 			identifier: phpstanApi.instanceofType

src/Type/ObjectType.php

@@ -624,11 +624,7 @@ public function isSuperTypeOf(Type $type): IsSuperTypeOfResult
 
 	public function equals(Type $type): bool
 	{
-		if (!$type instanceof self) {
-			return false;
-		}
-
-		if ($type instanceof EnumCaseObjectType) {
+		if (get_class($this) !== get_class($type)) {
 			return false;
 		}