v0.21.0

Added

• NameResolver — resolves class, function and const names to fully qualified names using the current namespace and use imports (including group uses and aliases), for both the arena and owned ASTs (php-ast).

Changed

• Scope and OwnedScope are now #[non_exhaustive] (php-ast).
• Lexer no longer runs a heredoc probe before every token, making parsing ~13% faster on the Laravel framework source (php-lexer).