Dedup indent level decrease code

[mvorisek]

as requested in #110 (comment)

[greg0ire]

Fix slow array_unshift/shift, appending is faster

Have you been able to measure a meaningful difference in our case?

[mvorisek]

Now I did - https://3v4l.org/eFdHL/rfc#vgit.master_jit - array shift/unshift is simply very costly and should never be used if appending is an option. Even with a small element count.

[greg0ire]

Looking at the execution time of the test suite, it seems faster as well.
Before
After

It's not exactly scientific, but since your changes don't make the code harder to read, I'd say let's go with that.

[greg0ire]

Thanks @SenseException !