False positive with range-over-function

[jdemeyer]

The prealloc code seems to assume that the length of whatever you are iterating over is known in advance. But this is no longer true with the new Go 1.23 range-over-function iterators.

Minimal example:

package main

func iterator(func(int) bool) {
    // ...iterator implementation...
}

func main() {
    var slice []int
    for i := range iterator {
        slice = append(slice, i)
    }
}

Solution: do not issue a linter warning for range-over-function loops.