favour ArrayList over ArrayListUnmanaged

[bnjmnjrk]

Make ArrayListUnmanaged ready for removal from the standard library.

zig/lib/std/std.zig

Lines 57 to 58 in f0a3df9

	/// Deprecated; use `ArrayList`.
	pub const ArrayListUnmanaged = ArrayList;

---

I have left two instances of 'ArrayListUnmanaged' unchanged:

1. zig/tools/std_gdb_pretty_printers.py

   Lines 6 to 14 in f0a3df9

   	# Handles both ArrayList and ArrayListUnmanaged.
   	class ArrayListPrinter:
   	def __init__(self, val):
   	self.val = val
   	def to_string(self):
   	type = self.val.type.name[len('std.array_list.'):]
   	type = re.sub(r'^ArrayListAligned(Unmanaged)?\((.*),null\)$', r'ArrayList\1(\2)', type)
   	return '%s of length %s, capacity %s' % (type, self.val['items']['len'], self.val['capacity'])

   
   So, the tool can still be used when working with older Zig code.

2. zig/lib/std/std.zig

   Lines 57 to 58 in f0a3df9

   	/// Deprecated; use `ArrayList`.
   	pub const ArrayListUnmanaged = ArrayList;

   
   ArrayListUnmanaged is still available, and it is up to the project maintainers to decide when to delete it.

[bnjmnjrk]

The failed test on Windows seems unrelated to my changes. Does anyone have any idea what could be causing it?

[squeek502]

The failed test on Windows seems unrelated to my changes. Does anyone have any idea what could be causing it?

#22510, will restart that job if it fails again

[squeek502]

FYI there's no need to continually rebase unless there are conflicts that need to be resolved (unsure if there were conflicts before the latest rebase, just letting you know).

[andrewrk]

thanks!