[7.x] Publish resources.stub in stub:publish command (#33862)

* [7.x] Add a new helper to determine the true parent of a class.

Some examples of use are:

```php
class_parent_initial(HasMany::class); // Returns Relation::class
class_parent_initial(HasOne::class); // Returns Relation::class
class_parent_initial(HasOneOrMany::class); // Returns Relation::class
```

* [7.x] Publish resources.stub in stub:publish command

* Remove parent_class helper

* Update stub resources to match the format of the other publishable stubs.

src/Illuminate/Foundation/Console/ResourceMakeCommand.php

@@ -51,8 +51,8 @@ public function handle()
     protected function getStub()
     {
         return $this->collection()
-                    ? __DIR__.'/stubs/resource-collection.stub'
-                    : __DIR__.'/stubs/resource.stub';
+                    ? $this->resolveStubPath('/stubs/resource-collection.stub')
+                    : $this->resolveStubPath('/stubs/resource.stub');
     }
 
     /**
@@ -66,6 +66,19 @@ protected function collection()
                Str::endsWith($this->argument('name'), 'Collection');
     }
 
+    /**
+     * Resolve the fully-qualified path to the stub.
+     *
+     * @param  string  $stub
+     * @return string
+     */
+    protected function resolveStubPath($stub)
+    {
+        return file_exists($customPath = $this->laravel->basePath(trim($stub, '/')))
+                        ? $customPath
+                        : __DIR__.$stub;
+    }
+
     /**
      * Get the default namespace for the class.
      *

src/Illuminate/Foundation/Console/StubPublishCommand.php

@@ -38,6 +38,8 @@ public function handle()
             __DIR__.'/stubs/model.pivot.stub' => $stubsPath.'/model.pivot.stub',
             __DIR__.'/stubs/model.stub' => $stubsPath.'/model.stub',
             __DIR__.'/stubs/request.stub' => $stubsPath.'/request.stub',
+            __DIR__.'/stubs/resource.stub' => $stubsPath.'/resource.stub',
+            __DIR__.'/stubs/resource-collection.stub' => $stubsPath.'/resource-collection.stub',
             __DIR__.'/stubs/test.stub' => $stubsPath.'/test.stub',
             __DIR__.'/stubs/test.unit.stub' => $stubsPath.'/test.unit.stub',
             realpath(__DIR__.'/../../Database/Console/Factories/stubs/factory.stub') => $stubsPath.'/factory.stub',

src/Illuminate/Foundation/Console/stubs/resource-collection.stub

@@ -1,10 +1,10 @@
 <?php
 
-namespace DummyNamespace;
+namespace {{ namespace }};
 
 use Illuminate\Http\Resources\Json\ResourceCollection;
 
-class DummyClass extends ResourceCollection
+class {{ class }} extends ResourceCollection
 {
     /**
      * Transform the resource collection into an array.

src/Illuminate/Foundation/Console/stubs/resource.stub

@@ -1,10 +1,10 @@
 <?php
 
-namespace DummyNamespace;
+namespace {{ namespace }};
 
 use Illuminate\Http\Resources\Json\JsonResource;
 
-class DummyClass extends JsonResource
+class {{ class }} extends JsonResource
 {
     /**
      * Transform the resource into an array.