[lldb] Add "Trace" stop reason in Scripted Thread

This patch adds support to eStopReasonTrace to Scripted Threads.

This is necessary when using a Scrited Process with a Scripted Thread
Plan to report a special thread stop reason to the thread plan.

rdar://109425542

Differential Revision: https://reviews.llvm.org/D151043

Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>

lldb/source/Plugins/Process/scripted/ScriptedThread.cpp

@@ -258,6 +258,9 @@ bool ScriptedThread::CalculateStopInfo() {
     stop_info_sp =
         StopInfo::CreateStopReasonWithSignal(*this, signal, description.data());
   } break;
+  case lldb::eStopReasonTrace: {
+    stop_info_sp = StopInfo::CreateStopReasonToTrace(*this);
+  } break;
   case lldb::eStopReasonException: {
 #if defined(__APPLE__)
     StructuredData::Dictionary *mach_exception;

lldb/test/API/functionalities/scripted_process/TestScriptedProcess.py

@@ -186,7 +186,7 @@ def cleanup():
         self.assertTrue(thread, "Invalid thread.")
         self.assertEqual(thread.GetThreadID(), 0x19)
         self.assertEqual(thread.GetName(), "DummyScriptedThread.thread-1")
-        self.assertStopReason(thread.GetStopReason(), lldb.eStopReasonSignal)
+        self.assertStopReason(thread.GetStopReason(), lldb.eStopReasonTrace)
 
         self.assertGreater(thread.GetNumFrames(), 0)
 

lldb/test/API/functionalities/scripted_process/dummy_scripted_process.py

@@ -67,9 +67,7 @@ def get_state(self) -> int:
         return lldb.eStateStopped
 
     def get_stop_reason(self) -> Dict[str, Any]:
-        return { "type": lldb.eStopReasonSignal, "data": {
-            "signal": signal.SIGINT
-        } }
+        return { "type": lldb.eStopReasonTrace, "data": {} }
 
     def get_register_context(self) -> str:
         return struct.pack(