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/MacroTest.php

@@ -0,0 +1,79 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Barryvdh\LaravelIdeHelper\Tests;
+
+use Barryvdh\LaravelIdeHelper\Macro;
+use Barryvdh\Reflection\DocBlock;
+use Barryvdh\Reflection\DocBlock\Tag;
+use Illuminate\Database\Eloquent\Builder as EloquentBuilder;
+use ReflectionClass;
+use ReflectionFunction;
+use ReflectionFunctionAbstract;
+
+use function array_map;
+use function implode;
+
+use const PHP_EOL;
+
+/**
+ * @internal
+ * @coversDefaultClass \Barryvdh\LaravelIdeHelper\Macro
+ */
+class MacroTest extends TestCase
+{
+    /**
+     * @covers ::initPhpDoc
+     * @throws \ReflectionException
+     */
+    public function testInitPhpDocEloquentBuilderHasStaticInReturnType(): void
+    {
+        $class = new ReflectionClass(EloquentBuilder::class);
+        $phpdoc = (new MacroMock())->getPhpDoc(
+            new ReflectionFunction(
+                function (): EloquentBuilder {
+                    return $this;
+                }
+            ),
+            $class
+        );
+
+        $this->assertNotNull($phpdoc);
+        $this->assertEquals(
+            '@return \Illuminate\Database\Eloquent\Builder|static',
+            $this->tagsToString($phpdoc, 'return')
+        );
+    }
+
+    protected function tagsToString(DocBlock $docBlock, string $name)
+    {
+        $tags = $docBlock->getTagsByName($name);
+        $tags = array_map(
+            function (Tag $tag) {
+                return trim((string)$tag);
+            },
+            $tags
+        );
+        $tags = implode(PHP_EOL, $tags);
+
+        return $tags;
+    }
+}
+
+/**
+ * @internal
+ * @noinspection PhpMultipleClassesDeclarationsInOneFile
+ */
+class MacroMock extends Macro
+{
+    public function __construct()
+    {
+        // no need to call parent
+    }
+
+    public function getPhpDoc(ReflectionFunctionAbstract $method, ReflectionClass $class = null): DocBlock
+    {
+        return (new Macro($method, '', $class ?? $method->getClosureScopeClass()))->phpdoc;
+    }
+}