PHP 8.3 Support: Arbitrary static variable initializers

[junichi11]

• PHP 8.3 Support #6701
• PHP 8.3 Lazy static initialization for non constants #8073
• https://wiki.php.net/rfc/arbitrary_static_variable_initializers

Part 1

• Fix the grammar file (parser)
• Add unit tests for the parser

Example:

class Example {
    private int $field = 1;

    public function method(): int {
        return 1;
    }

    public function run(int $param1) : void {
        static $example1 = rand();
        static $example2 = $param1;
        static $example3 = $this->field;
        static $example4 = $this->method();
        static $example5 = new class() {};
        static $example6 = new stdClass(...[0]);
        static $example6 = new stdClass($param1);
        static $example7 = new (Test);
        static $example8 = new static;
        static $example9 = $param1 <= 100 ? run($param1 + 1) : "Test $param1";
        static $example10 = rand(), $example11 = rand();
    }
}

$variable = 1;
static $example1 = rand();
static $example2 = $variable;

Part 2

• Fix the formatter
• Add unit tests
  • Formatter
  • Code Completion
  • GotoDeclaration and MarkOccurrences

Part 3

• Fix the PHP83UnhandledError
• Fix the bracket barance for the ASTPHP5Scanner
• Add unit tests for the scanner

PHP 8.2

PHP 8.3

[tmysik]

Thanks for all the tests!