ncc: support unnamed unions

Author: madebr

tools/ncc/ncc.style

@@ -6,7 +6,7 @@ FunctionName: '^operator|^FUN_[a-f0-9]{8}$|^VTable0x[a-f0-9]{1,8}$|^(?!VTable)[A
 ParameterName: '^p_(unk0x[a-f0-9]{1,8}$|(?!unk)[a-z][a-zA-Z0-9]*)$|^$'
 StructName: '^\(anon|^\(unnamed|^[A-Z][a-zA-Z0-9]+$'
 TypedefName: '^[A-Z][a-zA-Z0-9]+$'
-UnionName: '^\(anon|^[A-Z][a-zA-Z0-9]+$'
+UnionName: '^\(anon|\(unnamed|^[A-Z][a-zA-Z0-9]+$'
 VariableName:
     ScopePrefix:
         Global: 'g_'