[PATCH] dwrite.idl: Use DEFINE_ENUM_FLAG_OPERATORS for enums that need it.

[Jacek Caban]

Signed-off-by: Jacek Caban <jacek(a)codeweavers.com>
---
Fixes building Wine Gecko with Wine dwrite headers.

  include/dwrite.idl | 2 ++
  1 file changed, 2 insertions(+)