[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/LaravelCustomCasts/Casts/CustomCasterWithDocblockReturnFqn.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace Barryvdh\LaravelIdeHelper\Tests\Console\ModelsCommand\LaravelCustomCasts\Casts;
+
+use Illuminate\Contracts\Database\Eloquent\CastsAttributes;
+
+class CustomCasterWithDocblockReturnFqn implements CastsAttributes
+{
+    /**
+     * @inheritDoc
+     * @return \Barryvdh\LaravelIdeHelper\Tests\Console\ModelsCommand\LaravelCustomCasts\Casts\CastedProperty
+     */
+    public function get($model, string $key, $value, array $attributes)
+    {
+        return new CastedProperty();
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function set($model, string $key, $value, array $attributes)
+    {
+        // TODO: Implement set() method.
+    }
+}