Fix even second part not working with enums

Author: janedbal

src/Type/Php/InArrayFunctionTypeSpecifyingExtension.php

@@ -134,7 +134,7 @@ public function specifyTypes(FunctionReflection $functionReflection, FuncCall $n
 			$context->true()
 			|| (
 				$context->false()
-				&& count($needleType->getFiniteTypes()) === 1
+				&& count($needleType->getFiniteTypes()) > 0
 			)
 		) {
 			if ($context->true()) {

tests/PHPStan/Analyser/data/enum-in-array.php

@@ -47,6 +47,7 @@ public function test3(): void
 			}
 		}
 	}
+
 	public function test4(): void
 	{
 		foreach ([MyEnum::C] as $enum) {
@@ -89,6 +90,18 @@ public function testNegative3(): void
 		}
 	}
 
+	/**
+	 * @param array<MyEnum|null> $array
+	 */
+	public function testNegative4(MyEnum $enum, array $array): void
+	{
+		if (!in_array($enum, $array, true)) {
+			assertType('array<null>', $array);
+		} else {
+			assertType('non-empty-array<MyEnum|null>', $array);
+		}
+	}
+
 }
 
 class InArrayEnum