[lldb/bindings] Change ScriptedThread initializer parameters

This patch changes the `ScriptedThread` initializer in couple of ways:
- It replaces the `SBTarget` parameter by a `SBProcess` (pointing to the
  `ScriptedProcess` that "owns" the `ScriptedThread`).
- It adds a reference to the `ScriptedProcessInfo` Dictionary, to pass
  arbitrary user-input to the `ScriptedThread`.

This patch also fixes the SWIG bindings methods that call the
`ScriptedProcess` and `ScriptedThread` initializers by passing all the
arguments to the appropriate `PythonCallable` object.

Differential Revision: https://reviews.llvm.org/D112046

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>

lldb/source/Plugins/ScriptInterpreter/Python/ScriptedThreadPythonInterface.cpp

@@ -36,16 +36,20 @@ StructuredData::GenericSP ScriptedThreadPythonInterface::CreatePluginObject(
   if (class_name.empty())
     return {};
 
+  ProcessSP process_sp = exe_ctx.GetProcessSP();
+  StructuredDataImpl *args_impl = nullptr;
+  if (args_sp) {
+    args_impl = new StructuredDataImpl();
+    args_impl->SetObjectSP(args_sp);
+  }
+  std::string error_string;
+
   Locker py_lock(&m_interpreter, Locker::AcquireLock | Locker::NoSTDIN,
                  Locker::FreeLock);
 
-  std::string error_string;
-
-  TargetSP target_sp = exe_ctx.GetTargetSP();
-
   void *ret_val = LLDBSwigPythonCreateScriptedThread(
-      class_name.str().c_str(), m_interpreter.GetDictionaryName(), target_sp,
-      error_string);
+      class_name.str().c_str(), m_interpreter.GetDictionaryName(), process_sp,
+      args_impl, error_string);
 
   if (!ret_val)
     return {};