add stackoverflow test for @immut/list.T

[illusory0x0]

No description provided.

[peter-jerry-ye-code-review]

Test name contains a typo

Category
Correctness
Code Snippet
test "stackover flow" {
Recommendation
Rename the test to "stack overflow" to correctly represent the term
Reasoning
The term 'stackoverflow' is commonly written as two words 'stack overflow'. The current name could cause confusion or appear unprofessional.

Test assertions could benefit from a more descriptive comment

Category
Maintainability
Code Snippet
inspect!(lst.fold(init=0.0, fn(acc, x) { acc + x.to_double() }), content="549755289600")
Recommendation
Add a comment explaining the expected sum and why these three different approaches should yield the same result
Reasoning
The magic number 549755289600 and the purpose of testing three different folding approaches isn't immediately clear to other developers. A brief explanation would improve test readability and maintainability.

Multiple list traversals might be unnecessary for testing

Category
Performance
Code Snippet
let lst = from_iter(iter)
inspect!(lst.fold...)
inspect!(lst.rev_fold...)
inspect!(lst.rev().fold...)
Recommendation
Consider calculating the expected sum mathematically and store the list traversal result in a variable to avoid redundant computations
Reasoning
The current implementation traverses the large list three times. While this might be intentional for testing different methods, it could be optimized if the goal is just to verify the correctness of the operations.

[peter-jerry-ye]

Closing as cherry-picked to #1789