Ignored pack expansions.

Signed-off-by: Dimitar Dobrev <dpldobrev@protonmail.com>

src/AST/ASTVisitor.cs

@@ -253,7 +253,7 @@ namespace CppSharp.AST
             return true;
         }
 
-        public bool VisitPackExpansionType(PackExpansionType packExpansionType, TypeQualifiers quals)
+        public virtual bool VisitPackExpansionType(PackExpansionType packExpansionType, TypeQualifiers quals)
         {
             return true;
         }

src/Generator/Types/TypeIgnoreChecker.cs

@@ -158,6 +158,12 @@ namespace CppSharp
             Ignore();
             return false;
         }
+
+        public override bool VisitPackExpansionType(PackExpansionType packExpansionType, TypeQualifiers quals)
+        {
+            Ignore();
+            return false;
+        }
     }
 
 }