Improve ignored check for decls with explicit generation kinds.

src/AST/Declaration.cs

@@ -72,6 +72,11 @@ namespace CppSharp.AST
         /// </summary>
         public virtual bool IsGenerated => GenerationKind == GenerationKind.Generate;
 
+        /// <summary>
+        /// Whether the declaration has an explicit set generation kind.
+        /// </summary>
+        public bool HasExplicitGenerationKind => generationKind.HasValue;
+
         /// <summary>
         /// Whether the declaration was explicitly set to be generated via
         /// the GenerationKind propery as opposed to the default generated state.

src/Generator/Passes/CheckIgnoredDecls.cs

@@ -13,9 +13,6 @@ namespace CppSharp.Passes
 
         public bool CheckDeclarationAccess(Declaration decl)
         {
-            if (decl.IsExplicitlyGenerated)
-                return true;
-
             switch (decl.Access)
             {
                 case AccessSpecifier.Public:
@@ -79,6 +76,9 @@ namespace CppSharp.Passes
             if (AlreadyVisited(decl))
                 return false;
 
+            if (decl.HasExplicitGenerationKind)
+                return true;
+
             if (decl.GenerationKind == GenerationKind.None)
                 return true;