Updated test cases documentation

docs/test_cases/t20015.md

@@ -71,8 +71,10 @@ void tmain()
   "name": "t20015_sequence",
   "participants": [
     {
+      "display_name": "tmain()",
       "id": "1011496551872082945",
-      "name": "clanguml::t20015::tmain()",
+      "name": "tmain",
+      "namespace": "clanguml::t20015",
       "source_location": {
         "column": 6,
         "file": "t20015.cc",
@@ -82,8 +84,25 @@ void tmain()
       "type": "function"
     },
     {
+      "activities": [
+        {
+          "display_name": "setup_a(std::shared_ptr<detail::A> &)",
+          "id": "431575772398797060",
+          "name": "setup_a",
+          "namespace": "",
+          "source_location": {
+            "column": 10,
+            "file": "t20015.cc",
+            "line": 23,
+            "translation_unit": "t20015.cc"
+          },
+          "type": "method"
+        }
+      ],
+      "display_name": "B",
       "id": "1302656676783358645",
-      "name": "clanguml::t20015::B",
+      "name": "B",
+      "namespace": "clanguml::t20015",
       "source_location": {
         "column": 7,
         "file": "t20015.cc",
@@ -99,9 +118,7 @@ void tmain()
         {
           "from": {
             "activity_id": "1011496551872082945",
-            "activity_name": "clanguml::t20015::tmain()",
-            "participant_id": "1011496551872082945",
-            "participant_name": "clanguml::t20015::tmain()"
+            "participant_id": "1011496551872082945"
           },
           "name": "setup_a(std::shared_ptr<detail::A> &)",
           "return_type": "void",
@@ -114,7 +131,6 @@ void tmain()
           },
           "to": {
             "activity_id": "431575772398797060",
-            "activity_name": "clanguml::t20015::B::setup_a(std::shared_ptr<detail::A> &)",
             "participant_id": "1302656676783358645"
           },
           "type": "message"