test: 無名関数で Alias が使えないバグのテストケース

tests/PHPStan/Analyser/AnalyserIntegrationTest.php

@@ -1184,6 +1184,12 @@ public function testBug5091(): void
 		$this->assertNoErrors($errors);
 	}
 
+	public function testBug9346(): void
+	{
+		$errors = $this->runAnalyse(__DIR__ . '/data/bug-9346.php');
+		$this->assertNoErrors($errors);
+	}
+
 	public function testBug9459(): void
 	{
 		$errors = $this->runAnalyse(__DIR__ . '/data/bug-9459.php');

tests/PHPStan/Analyser/NodeScopeResolverTest.php

@@ -181,6 +181,8 @@ public function dataFileAsserts(): iterable
 		yield from $this->gatherAssertTypes(__DIR__ . '/../Rules/Methods/data/bug-9542.php');
 		yield from $this->gatherAssertTypes(__DIR__ . '/../Rules/Functions/data/bug-9803.php');
 		yield from $this->gatherAssertTypes(__DIR__ . '/../Rules/PhpDoc/data/bug-10594.php');
+
+		yield from $this->gatherAssertTypes(__DIR__ . '/../Rules/Methods/data/bug-9346.php');
 	}
 
 	/**

tests/PHPStan/Analyser/data/bug-9346.php

@@ -0,0 +1,64 @@
+<?php
+
+namespace Bug9346;
+
+use DateTime;
+
+/**
+ * @phpstan-type MyType array{
+ *     key?: string,
+ * }
+ */
+class Test
+{
+	/**
+	 * @param MyType $params
+	 */
+	public function create(array $params = []): object
+	{
+		return new class($params) {
+			/**
+			 * @param MyType $params
+			 */
+			public function __construct(private array $params)
+			{
+			}
+		};
+	}
+}
+
+/**
+ * @phpstan-type FooJson array{bar: string}
+ */
+interface Foo
+{
+	/**
+	 * @phpstan-return FooJson
+	 */
+	public function sayHello(DateTime $date): array;
+}
+
+/**
+ * @phpstan-import-type FooJson from Foo
+ */
+class HelloWorld
+{
+	public function createFoo(): Foo
+	{
+		$foo = new class() implements Foo {
+			/**
+			 * @phpstan-var FooJson $var
+			 */
+			private array $var = ['bar' => 'baz'];
+
+			/**
+			 * @phpstan-return FooJson
+			 */
+			public function sayHello(DateTime $date): array
+			{
+				return $this->var;
+			}
+		};
+		return $foo;
+	}
+}