[lldb] Add missing return statements in ThreadMemory (#126128)

These prevented ThreadMemory from correctly returning the
Name/Queue/Info of the backing thread.

Note about testing: this test only finds regressions if the system sets
a name or queue for the backing thread. While this may not be true
everywhere, it still provides coverage in some systems, e.g. in Apple
platforms.

1 files changed, 6 insertions, 0 deletions

diff --git a/lldb/test/API/functionalities/plugins/python_os_plugin/TestPythonOSPlugin.py b/lldb/test/API/functionalities/plugins/python_os_plugin/TestPythonOSPlugin.py
index 3ad7539018d5..fe78edd98f4d 100644
--- a/lldb/test/API/functionalities/plugins/python_os_plugin/TestPythonOSPlugin.py
+++ b/lldb/test/API/functionalities/plugins/python_os_plugin/TestPythonOSPlugin.py
@@ -160,6 +160,8 @@ class PluginPythonOSPlugin(TestBase):
         )
         self.assertTrue(process, PROCESS_IS_VALID)
 
+        core_thread_zero = process.GetThreadAtIndex(0)
+
         # Make sure there are no OS plug-in created thread when we first stop
         # at our breakpoint in main
         thread = process.GetThreadByID(0x111111111)
@@ -183,6 +185,10 @@ class PluginPythonOSPlugin(TestBase):
             thread.IsValid(),
             "Make sure there is a thread 0x111111111 after we load the python OS plug-in",
         )
+        # This OS plugin does not set thread names / queue names, so it should
+        # inherit the core thread's name.
+        self.assertEqual(core_thread_zero.GetName(), thread.GetName())
+        self.assertEqual(core_thread_zero.GetQueueName(), thread.GetQueueName())
 
         frame = thread.GetFrameAtIndex(0)
         self.assertTrue(