Ignored partial specialisations of class templates.

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

src/Generator/Passes/TrimSpecializationsPass.cs

@@ -17,7 +17,8 @@ namespace CppSharp.Passes
 
             foreach (var specialization in @class.Specializations.Where(s => s.Arguments.Any(
                 a => a.Type.Type != null &&
-                    CheckIgnoredDeclsPass.IsTypeExternal(@class.TranslationUnit.Module, a.Type.Type))))
+                    CheckIgnoredDeclsPass.IsTypeExternal(@class.TranslationUnit.Module, a.Type.Type)) ||
+                    @class is ClassTemplatePartialSpecialization))
                 specialization.ExplicitlyIgnore();
 
             if (@class.Specializations.Count == 0)