Order of alter hooks is not always respected by ModuleHandler

Let's add related tests here, 🐛 Order of alter hooks is not always respected by ModuleHandler Needs work

I believe changing this as proposed would make some happy and others unhappy.
The impact will become more clear with the new order tests added in 🐛 Order of alter hooks is not always respected by ModuleHandler Needs work .
I suggest to keep the functionality as it is today, and wait for 📌 Hux-style hooks, proof of concept Needs work which will allow to specify weights for individual implementations.

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For people who still need this, there _is_ a workaround!
You can invent a fake module, and use hook_module_implements_alter() to insert an implementation on behalf of that fake module.

E.g. Display Suite (ds) can invent a fake module '_ds_late', for hooks that should run late.

Then do this:

function ds_module_implements_alter(array &$implementations, string $hook): void {
  // Always target the the base hook, otherwise implementations will be removed.
  if ($hook === 'entity_view_alter') {
    $implementations['_ds_late'] = FALSE;
  }
}

// This will run last on ->alter(['entity_view', 'node_view']).
function _ds_late_node_view_alter(...) {...}

I am not sure if we will or should support this workaround in 🌱 [META] Hooks via attributes on service methods (hux style) Active , though.

Sorry, links in my previous posts were wrong.
Correct link is 📌 Improve unit test coverage for ModuleHandler RTBC
(I already corrected, but this is for people who only read the emails)