Refactored sequence diagram generator to cppast

tests/t20001/.clang-uml

@@ -14,7 +14,7 @@ diagrams:
     using_namespace:
       - clanguml::t20001
     start_from:
-      - usr: "c:@N@clanguml@N@t20001@F@tmain#"
+      - function: "clanguml::t20001::tmain()"
     plantuml:
       before:
         - "' t20001 test sequence diagram"

tests/t20001/test_case.h

@@ -18,7 +18,7 @@
 
 TEST_CASE("t20001", "[test-case][sequence]")
 {
-    auto [config, db] = load_config2("t20001");
+    auto [config, db] = load_config("t20001");
 
     auto diagram = config.diagrams["t20001_sequence"];
 
@@ -49,6 +49,7 @@ TEST_CASE("t20001", "[test-case][sequence]")
     REQUIRE_THAT(puml, HasCall("B", "A", "log_result"));
     REQUIRE_THAT(puml, HasCallWithResponse("B", "A", "add3"));
     REQUIRE_THAT(puml, HasCall("A", "add"));
+    REQUIRE_THAT(puml, !HasCall("A", "detail::C", "add"));
 
     save_puml(
         "./" + config.output_directory + "/" + diagram->name + ".puml", puml);

tests/test_cases.cc

@@ -41,7 +41,7 @@ std::pair<clanguml::config::config, compilation_database> load_config2(
 }
 
 clanguml::sequence_diagram::model::diagram generate_sequence_diagram(
-    compilation_database &db,
+    cppast::libclang_compilation_database &db,
     std::shared_ptr<clanguml::config::diagram> diagram)
 {
     auto diagram_model =