tests/phpunit: populate iterable types for phpstan

tests/phpunit/block/BlockTest.php

@@ -95,7 +95,8 @@ class BlockTest extends TestCase{
 	}
 
 	/**
-	 * @return array
+	 * @return int[][]
+	 * @phpstan-return list<array{int,int}>
 	 */
 	public function blockGetProvider() : array{
 		return [

tests/phpunit/item/ItemTest.php

@@ -61,6 +61,10 @@ class ItemTest extends TestCase{
 		}
 	}
 
+	/**
+	 * @return mixed[][]
+	 * @phpstan-return list<array{string,int,int}>
+	 */
 	public function itemFromStringProvider() : array{
 		return [
 			["dye:4", ItemIds::DYE, 4],

tests/phpunit/level/format/io/region/RegionLoaderTest.php

@@ -69,6 +69,10 @@ class RegionLoaderTest extends TestCase{
 		self::assertSame($data, $r->readChunk(0, 0));
 	}
 
+	/**
+	 * @return \Generator|int[][]
+	 * @phpstan-return \Generator<int, array{int,int}, void, void>
+	 */
 	public function outOfBoundsCoordsProvider() : \Generator{
 		yield [-1, -1];
 		yield [32, 32];

tests/phpunit/network/mcpe/StupidJsonDecodeTest.php

@@ -33,6 +33,10 @@ class StupidJsonDecodeTest extends TestCase{
 		$this->stupidJsonDecodeFunc = (new \ReflectionMethod(PlayerNetworkSessionAdapter::class, 'stupid_json_decode'))->getClosure();
 	}
 
+	/**
+	 * @return mixed[][]
+	 * @phpstan-return list<array{string,mixed}>
+	 */
 	public function stupidJsonDecodeProvider() : array{
 		return [
 			["[\n   \"a\",\"b,c,d,e\\\"   \",,0,1,2, false, 0.001]", ['a', 'b,c,d,e"   ', '', 0, 1, 2, false, 0.001]],

tests/phpunit/utils/ConfigTest.php

@@ -28,7 +28,8 @@ use PHPUnit\Framework\TestCase;
 class ConfigTest extends TestCase{
 
 	/**
-	 * @return \Generator
+	 * @return \Generator|mixed[][]
+	 * @phpstan-return \Generator<int, array{string, mixed[]}, void, void>
 	 */
 	public function fixYamlIndexesProvider() : \Generator{
 		yield ["x: 1\ny: 2\nz: 3\n", [
@@ -61,7 +62,7 @@ class ConfigTest extends TestCase{
 	 * @dataProvider fixYamlIndexesProvider
 	 *
 	 * @param string  $test
-	 * @param array  $expected
+	 * @param mixed[] $expected
 	 */
 	public function testFixYamlIndexes(string $test, array $expected) : void{
 		$fixed = Config::fixYAMLIndexes($test);

tests/phpunit/utils/UtilsTest.php

@@ -38,6 +38,10 @@ class UtilsTest extends TestCase{
 		}
 	}
 
+	/**
+	 * @return string[][]
+	 * @phpstan-return list<array{string}>
+	 */
 	public function parseDocCommentNewlineProvider() : array{
 		return [
 			["\t/**\r\n\t * @param PlayerJoinEvent \$event\r\n\t * @priority HIGHEST\r\n\t * @notHandler\r\n\t */"],