- Based on !463 - _RunAndWait and exception handling implemented in later commits
@piotr
-- v6: msvcr100: Implement _StructuredTaskCollection::_Schedule and _Schedule_loc. msvcr100: Factor out the mapping of a context to a scheduler. msvcr100: Cache one Context instance. msvcr100: Factor out EXCEPTION_RECORD to exception_ptr conversion. msvcr100: Move exception_ptr functions to a separate file.