message: [lldb][NFC] Remove unnecessary cast in ClangUserExpression
diff: @@ -645,13 +645,11 @@ bool ClangUserExpression::Parse(DiagnosticManager &diagnostic_manager,
  register_execution_unit = true;
  }
  - if (register_execution_unit) {
  - llvm::cast<PersistentExpressionState>(
  - exe_ctx.GetTargetPtr()->GetPersistentExpressionStateForLanguage(
  - m_language))
  + if (register_execution_unit)
  + exe_ctx.GetTargetPtr()
  + ->GetPersistentExpressionStateForLanguage(m_language)
  ->RegisterExecutionUnit(m_execution_unit_sp);
  }
  - }
  if (generate_debug_info) {
  lldb::ModuleSP jit_module_sp(m_execution_unit_sp->GetJITModule());
  