Alias will grab macros from \Illuminate\Database\Eloquent\Builder too (#1118)

* `Alias` will grab macros from `\Illuminate\Database\Eloquent\Builder` too.

* `@return` will contains `|static` for Eloquent Builder macros which return Eloquent Builder instance.

* `Macro` tests.

* `Alias::detectMethods()` tests.

* Mock classes rename.

tests/AliasTest.php

@@ -0,0 +1,105 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Barryvdh\LaravelIdeHelper\Tests;
+
+use Barryvdh\LaravelIdeHelper\Alias;
+use Barryvdh\LaravelIdeHelper\Macro;
+use Illuminate\Database\Eloquent\Builder as EloquentBuilder;
+use Illuminate\Database\Query\Builder;
+use Illuminate\Support\Arr;
+
+/**
+ * @internal
+ * @coversDefaultClass \Barryvdh\LaravelIdeHelper\Alias
+ */
+class AliasTest extends TestCase
+{
+    /**
+     * @covers ::detectMethods
+     */
+    public function testDetectMethodsMacroableMacros(): void
+    {
+        // Mock
+        $macro = __FUNCTION__;
+        $alias = new AliasMock();
+
+        // Macros
+        Builder::macro(
+            $macro,
+            function () {
+                // empty
+            }
+        );
+
+        // Prepare
+        $alias->setClasses([Builder::class]);
+        $alias->detectMethods();
+
+        // Test
+        $this->assertNotNull($this->getAliasMacro($alias, Builder::class, $macro));
+    }
+
+    /**
+     * @covers ::detectMethods
+     */
+    public function testDetectMethodsEloquentBuilderMacros(): void
+    {
+        // Mock
+        $macro = __FUNCTION__;
+        $alias = new AliasMock();
+
+        // Macros
+        EloquentBuilder::macro(
+            $macro,
+            function () {
+                // empty
+            }
+        );
+
+        // Prepare
+        $alias->setClasses([EloquentBuilder::class]);
+        $alias->detectMethods();
+
+        // Test
+        $this->assertNotNull($this->getAliasMacro($alias, EloquentBuilder::class, $macro));
+    }
+
+    protected function getAliasMacro(Alias $alias, string $class, string $method): ?Macro
+    {
+        return Arr::first(
+            $alias->getMethods(),
+            function ($macro) use ($class, $method) {
+                return $macro instanceof Macro
+                    && $macro->getDeclaringClass() === "\\{$class}"
+                    && $macro->getName() === $method;
+            }
+        );
+    }
+}
+
+/**
+ * @internal
+ * @noinspection PhpMultipleClassesDeclarationsInOneFile
+ */
+class AliasMock extends Alias
+{
+    public function __construct()
+    {
+        // no need to call parent
+    }
+
+    /**
+     * @param string[] $classes
+     */
+    public function setClasses(array $classes)
+    {
+        $this->classes = $classes;
+    }
+
+    public function detectMethods()
+    {
+        parent::detectMethods();
+    }
+}