[Model] Simplify full namespaces for already included resources (#954)

* Fixed #565 by using the imported class name if present. Fixed a bug where cast type was not properly added when the return type was found via phpdoc.

* Fixed errors with phpdocumentor/type-resolver:1.0

tests/Console/ModelsCommand/GeneratePhpdocWithFqn/Models/Post.php

@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace Barryvdh\LaravelIdeHelper\Tests\Console\ModelsCommand\GeneratePhpdocWithFqn\Models;
+
+use Barryvdh\LaravelIdeHelper\Tests\Console\ModelsCommand\GeneratePhpdocWithFqn\Casts\CastType;
+use Eloquent;
+use Illuminate\Database\Eloquent\{
+    Builder as EloquentBuilder,
+    Collection,
+    SoftDeletes
+};
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Query\Builder as QueryBuilder;
+use Illuminate\Support\Carbon;
+
+class Post extends Model
+{
+    use SoftDeletes;
+
+    protected $casts = [
+        'char_not_nullable' => CastType::class,
+    ];
+
+    public function posts(): HasMany
+    {
+        return $this->hasMany(Post::class);
+    }
+
+    public function scopeNull($query, string $unusedParam)
+    {
+        return $query;
+    }
+}