Added nontype variadic instantiation support

tests/t00012/t00012.cc

@@ -9,5 +9,17 @@ template <typename T, typename... Ts> class A {
     T value;
     std::variant<Ts...> values;
 };
+
+template <int... Is> class B {
+    std::array<int, sizeof...(Is)> ints;
+};
+
+class R {
+    A<int, std::string, float> a1;
+    A<int, std::string, bool> a2;
+
+    B<3, 2, 1> b1;
+    B<1, 1, 1, 1> b2;
+};
 }
 }

tests/t00012/test_case.h

@@ -45,6 +45,7 @@ TEST_CASE("Test t00012", "[unit-test]")
     REQUIRE_THAT(puml, StartsWith("@startuml"));
     REQUIRE_THAT(puml, EndsWith("@enduml\n"));
     REQUIRE_THAT(puml, IsClassTemplate("A", "T, Ts..."));
+    REQUIRE_THAT(puml, IsClassTemplate("B", "int Is..."));
 
     save_puml(
         "./" + config.output_directory + "/" + diagram->name + ".puml", puml);