- Refactor tryFoldConstantIntArithmetic to use separate evaluation method
- Add native mode rejection for undefined C++ operations like PHP_INT_MIN % -1
- Support modulo operator in constant arithmetic evaluation
- Add proper type mapping for integer/double/boolean in runtime type system
- Handle unary minus overflow detection when native types are disabled
- Implement division by zero handling for both division and modulo operations
- Add comprehensive tests for native mode constant overflow behavior
- Create test cases for scalar alias class type name handling
- Add test files for native mode arithmetic overflow validation
