Add test

Author: VincentLanglet

src/Type/Php/ArrayCombineHelper.php

@@ -116,7 +116,7 @@ private function sanitizeConstantArrayKeyTypes(array $types): ?array
 		$sanitizedTypes = [];
 
 		foreach ($types as $type) {
-			if ($type->isInteger()->no() && ! $type->toString() instanceof ErrorType) {
+			if (!$type->isInteger()->yes() && ! $type->toString() instanceof ErrorType) {
 				$type = $type->toString();
 			}
 

tests/PHPStan/Analyser/nsrt/array-combine-php8.php

@@ -147,3 +147,18 @@ function bug11819(): void
 	$types[] = 'foo';
 	assertType('array{1: false, 2: false, 3: false, 4: \'foo\'}', $types);
 }
+
+function withMixed(mixed $mixed1, mixed $mixed2)
+{
+	assertType('array', array_combine($mixed1, $mixed2));
+}
+
+/**
+ * @param 1|true $oneOrBool
+ */
+function withUnionAsKey(int|bool $oneOrBool)
+{
+	$keys = [$oneOrBool];
+
+	assertType(" array{1: 'bar'}", array_combine($keys, ['bar']));
+}