Auto merge of #18272 - mateon1:fix/profile-sorted-assert, r=emilio

Correct "is sorted" check in profile statistics

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Correct the debug_assert check for whether or not statistics collected by the --profile flag are sorted.
I'm not sure how I could add a test for this change, and whether that is necessary.

I also wonder if it makes sense to replace the sort_by calls (currently using explicit comparisons) in this file with something like
```
data.sort_by(|a, b| a.partial_cmp(b).expect("no NaN in collected statistics"))
```

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- [X] These changes fix #18270 (github issue number if applicable).

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