Fix non-dec int literal overflow behaviour

Author: Kirill Nesmeyanov

src/Node/Literal/IntLiteralNode.php

@@ -50,13 +50,13 @@ private static function split(string $literal): array
         if ($literal[0] === '0' && isset($literal[1])) {
             return [$isNegative, match ($literal[1]) {
                 // hexadecimal
-                'x', 'X' => \hexdec(\substr($literal, 2)),
+                'x', 'X' => \base_convert(\substr($literal, 2), 16, 10),
                 // binary
-                'b', 'B' => \bindec(\substr($literal, 2)),
+                'b', 'B' => \base_convert(\substr($literal, 2), 2, 10),
                 // octal
-                'o', 'O' => \octdec(\substr($literal, 2)),
+                'o', 'O' => \base_convert(\substr($literal, 2), 8, 10),
                 // octal (legacy)
-                default => \octdec($literal),
+                default => \base_convert($literal, 8, 10),
             }];
         }