[lldb][lldb-dap] clarify the todo.

Author: da-viper

lldb/tools/lldb-dap/Handler/ScopesRequestHandler.cpp

@@ -36,10 +36,11 @@ static Scope CreateScope(const llvm::StringRef name, int64_t variablesReference,
 
   // TODO: Support "arguments" and "return value" scope.
   // At the moment lldb-dap includes the arguments and return_value  into the
-  // "locals" scope. add presentation hint;
+  // "locals" scope.
   // vscode only expands the first non-expensive scope, this causes friction
-  // as the locals scope will not be expanded. It becomes more annoying when
-  // the scope has arguments, return_value and locals.
+  // if we add the arguments above the local scope as the locals scope will not
+  // be expanded if we enter a function with arguments. It becomes more
+  // annoying when the scope has arguments, return_value and locals.
   if (variablesReference == VARREF_LOCALS)
     scope.presentationHint = Scope::eScopePresentationHintLocals;
   else if (variablesReference == VARREF_REGS)