variant errors on top-level errors mask real error

When using say a restricted error variant, throwing an unsupported error will be masked by the "invalid variant" error in the bindings.

In componentize bindings, we should specially handle invalid error variants at the top-level to be able to provide better debugging output.

首先追蹤處理受限錯誤變體的 componentize bindings 路徑，重點了解不支援的頂層錯誤如何變成無效變體錯誤。重現遮蔽行為並比較可用的錯誤資訊。當原始的不支援錯誤仍顯示在偵錯輸出中而不是被遮蔽時，即表示完成。

由索引模型根據 Issue 內容生成。