can be observed with MSVC 2010SP1 (16.0.40219.1) x86 target in dbg configuation:
c:\047rls\reactos\base\services\nfsd\name_cache.h(77) : warning C4115: 'open_delegation_type4' : named type definition in parentheses
Fixed by adding a PCH. It helps most likely because that PCH influences the include order.
Fix picked from 0.4.8-dev-227-g af212ce508
It was the last C4115 on releases/0.4.7.