cfce2a93e5
- Add operatorMethodName mapping (tkPlus -> operator_add, etc.) - Add tryLowerOperatorCall / tryLowerIndexCall in HIR lowerer - Modify ekBinary lowering to check method table before builtins - Modify ekAssign lowering to detect ekIndex target and emit operator_index_set method call when available - Add sema type-checking for operator overloads in ekBinary and ekIndex paths (method-table lookup before builtin rules) - Fix sema compile errors: minfo.params[N].typ -> minfo.params[N] - Fix hir_lower forward decl ordering for resolveExprType - Update golden test expected.c files for current C backend - Update ROADMAP.md and PHASE8_STRATEGY.md status