next.js

52ac89f6 - [turbopack] Consolodate logic for visiting functions to simplify state management (#82763)

[turbopack] Consolodate logic for visiting functions to simplify state management (#82763) Introduce a new helper function `enter_fn` in the analyzer to ensure state like `cur_fn_id` is consistently updated. Follow the existing pattern of moving the state into a private module to control access. Leverage the early return stack information to detect when functions implicitly return `undefined` This fixes an small set of set of issues * cur_fn_id was not consistently updated * some functions were identified as returning undefined when they didn't Mostly this sets us up for a future where we can track other metadata based on the accurate `cur_fn_id` field