fix(turbopack): define object too big to make effect

[fireairforce]

object 太大导致 link_value 超出了 LIMIT_NODE_SIZE，导致 link_value 被处理成了 JsValue::Unknown 类型。

从而没触发 handle_free_var 的变量替换逻辑。

Related issue: utooland/utoo#2388

[gemini-code-assist]

Summary of Changes

Hello @fireairforce, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request resolves a critical bug in Turbopack's ECMAScript analysis where excessively large JavaScript objects were incorrectly processed as unknown values. This misclassification prevented essential variable replacement logic from executing, leading to incorrect code generation. The fix introduces a more robust condition for handling free variables, ensuring that even large objects are properly evaluated and processed, thereby improving the accuracy and reliability of the module analysis.

Highlights

• Fix for large object handling: Addressed an issue where large JavaScript objects caused link_value to return JsValue::Unknown, preventing the handle_free_var logic from being triggered for variable replacement.
• Refined handle_free_var condition: Modified the condition for calling handle_free_var to ensure it's invoked not only when linked_value is known, but also when a FreeVar might be present in free_var_references, even if link_value initially returned Unknown due to object size.
• Improved code generation for large objects: The change ensures that ConstantValueCodeGen is correctly applied for large objects that were previously misidentified as Unknown, thereby fixing potential issues with code generation.

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[gemini-code-assist]

Code Review

这个 PR 修复了当一个对象过大时，link_value 变为 Unknown 从而跳过 handle_free_var 调用的问题。通过增加一个额外的检查，确保即使在这种情况下，如果变量存在于 free_var_references 中，handle_free_var 仍然会被调用，这解决了根本问题。代码逻辑看起来是正确的。我有一个关于简化代码和提高可读性的建议。