Another dependency for !9209.
When C++/CX applications manually throw exceptions (i.e, by calling `_CxxThrowException` and not `__abi_WinRTraise*`), msvcrt/ucrt will still use the `cxx_exception_type` RTTI data from `vccorlib`, and not the one passed by the user. It also invokes a callback inside `exception_info`, which likely performs the necessary RoOriginateError/RoOriginateLanguageException bookkeeping and sets the `IRestrictedErrorInfo` field.
-- v3: msvcrt: Update WinRT exception type info in _CxxThrowException. msvcrt: Rename exception *IUNKNOWN flags to *WINRT.