fix expectations

Author: staabm

tests/PHPStan/Rules/Arrays/NonexistentOffsetInArrayDimFetchRuleTest.php

@@ -860,7 +860,16 @@ public function testBug12406b(): void
 	{
 		$this->reportPossiblyNonexistentGeneralArrayOffset = true;
 
-		$this->analyse([__DIR__ . '/data/bug-12406b.php'], []);
+		$this->analyse([__DIR__ . '/data/bug-12406b.php'], [
+			[
+				'Offset int<0, max> might not exist on non-empty-list<array{0: string, 1: non-empty-string, 2: non-falsy-string, 3: numeric-string, 4?: numeric-string, 5?: numeric-string}>.',
+				22
+			],
+			[
+				'Offset int<0, max> might not exist on non-empty-list<array{0: string, 1: non-empty-string, 2: non-falsy-string, 3: numeric-string, 4?: numeric-string, 5?: numeric-string}>.',
+				23
+			],
+		]);
 	}
 
 	public function testBug11679(): void