meson-1.11 breaks building nix

[juhp]

Recently Fedora updated to meson 1.11.1.

Now nix-2.34 fails to build: see NixOS/nix#15797

It seems 1.11 is more strict or regresses on expected types:

https://github.com/NixOS/nix/blob/master/doc/manual/meson.build#L234 gives:

src/nix-manual/meson.build:234:4: ERROR: custom_target keyword argument 'input' was of type array[File | LocalProgram] but should have been array[str | File | ExternalProgram | BuildTarget | CustomTarget | CustomTargetIndex | ExtractedObjects | GeneratedList]

similarly, for https://github.com/NixOS/nix/blob/master/tests/functional/meson.build#L255:
src/nix-functional-tests/meson.build:253:4: ERROR: test keyword argument 'depends' was of type array[CustomTarget | LocalProgram] but should have been array[BuildTarget | CustomTarget | CustomTargetIndex]

[dcbaker]

That looks like a legitimate regression. I suspect a CustomTarget has been converted into a LocalProgram. I'll have a look