Implement mutually exclusive header support in start_wdf_symbol_export_tasks #515
Description
Support the new mutually exclusive header grouping mechanism in the start_wdf_symbol_export_tasks function, which generates __declspec(selectany) symbols for WDK builds. This change should:
- Use the centralized mutually exclusive header groupings so symbol export tasks do not attempt to process conflicting headers together.
- Ensure that any symbol exports needed for a given driver type or header set are handled correctly according to the exclusive groupings, and that groupings are flexible for WDK version changes.
- The implementation should reuse the shared grouping logic and data structure for maintainability.
Reference: See parent issue for background, rationale, and example problem scenarios.