[WIP] Mimic 4474 for previous 0.17.2

tests/Issues/ReplaceStmtToExpr/Fixture/fixture.php.inc

@@ -0,0 +1,59 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Core\Tests\Issues\ReplaceStmtToExpr\Fixture;
+
+class Fixture
+{
+    public function getUser(?User $user = null): ?User
+    {
+        return $user ?? (Auth::check() ? Auth::user() : null);
+    }
+
+    public function doFoo(
+        ?User $user = null
+    ): bool {
+        $user = $this->getUser($user);
+
+        if (!$user) {
+            return false;
+        }
+
+        return $user->isFoo() || $user->isBar();
+    }
+
+}
+
+?>
+-----
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Core\Tests\Issues\ReplaceStmtToExpr\Fixture;
+
+class Fixture
+{
+    public function getUser(?User $user = null): ?User
+    {
+        return $user ?? (Auth::check() ? Auth::user() : null);
+    }
+
+    public function doFoo(
+        ?User $user = null
+    ): bool {
+        $user = $this->getUser($user);
+
+        if (!$user instanceof \Rector\Core\Tests\Issues\ReplaceStmtToExpr\Fixture\User) {
+            return false;
+        }
+        if ($user->isFoo()) {
+            return true;
+        }
+        return (bool) $user->isBar();
+    }
+
+}
+
+?>

tests/Issues/ReplaceStmtToExpr/ReplaceStmtToExprTest.php

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+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Core\Tests\Issues\ReplaceStmtToExpr;
+
+use Iterator;
+use PHPUnit\Framework\Attributes\DataProvider;
+use Rector\Testing\PHPUnit\AbstractRectorTestCase;
+
+final class ReplaceStmtToExprTest extends AbstractRectorTestCase
+{
+    #[DataProvider('provideData')]
+    public function test(string $filePath): void
+    {
+        $this->doTestFile($filePath);
+    }
+
+    public static function provideData(): Iterator
+    {
+        return self::yieldFilesFromDirectory(__DIR__ . '/Fixture');
+    }
+
+    public function provideConfigFilePath(): string
+    {
+        return __DIR__ . '/config/configured_rule.php';
+    }
+}

tests/Issues/ReplaceStmtToExpr/config/configured_rule.php

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+<?php
+
+declare(strict_types=1);
+
+use Rector\CodeQuality\Rector\Identical\FlipTypeControlToUseExclusiveTypeRector;
+use Rector\CodeQuality\Rector\If_\ExplicitBoolCompareRector;
+use Rector\Config\RectorConfig;
+use Rector\EarlyReturn\Rector\Return_\ReturnBinaryOrToEarlyReturnRector;
+
+return static function (RectorConfig $rectorConfig): void {
+    $rectorConfig->rules([
+        ExplicitBoolCompareRector::class,
+        FlipTypeControlToUseExclusiveTypeRector::class,
+        ReturnBinaryOrToEarlyReturnRector::class,
+    ]);
+};