2023-12-03: the one with PHP 8.1

Bug fixes:

• Support LSP document symbols in traits #2446 @LizheNing
• Fix null variable name crash #2443
• Fix frame merging of include/require #2391
• Fix enum representation in method generation #2395
• Fix enum cases() not existing false-positive #2423
• Fix incorrect enum import #2400
• Fix undefined var false positive for arra unpacking #2403
• Fix autoloading class conflcits with test files #2535 @gerardroche
• Fix enum renaming in legacy renamer #2445
• Fix enum renaming on "new" renamer #2445
• Fix crash on resolveItem() caused by race condition (?) #2434
• Fix false positive for undefined var where vardoc not counting as variable definition #2437
• Render variadics as variadics in help, not as arrays #2448
• Fix representation of int-range min/max #2444
• Render default value for enum when filling object #2441

Features:

• Generate enum cases and class constants #2422
• Generate enum match arms #2401

Improvements:

• Generate methods on enims #2416 @mamazu
• PHPStan: Support setting custom config path and memory limit @ungrim97
• Exclude tests from archive #2433

Breaking changes:

• Drop support for PHP 8.0. Minimum version is now 8.1