Error setting metadata directly on `ns` form

[ikappaki]

Hi,

there appears to be an issue when trying to set metadata on an ns form directly:
error occurred during macroexpansion: tuple index out of range

to reproduce,

1. create an issue.lpy file in a sys.path directory, declaring a namespace with metadata attached to its name

(ns ^:xyz issue)

(println :hi)

2. Open the REPL and try to require the namespace, the above error is raised

> basilisp repl
basilisp.user=> (require 'issue)

  exception: <class 'IndexError'> from <class 'basilisp.lang.compiler.exception.CompilerException'>
      phase: :macroexpansion
    message: error occurred during macroexpansion: tuple index out of range
       form: (ns issue)
   location: C:\src\basilisp\src\issue.lpy:1
    context:

 1 > | (ns ^:xyz issue)
 2   |
 3   | (println :hi)

In contrast, the same works fine in Clojure

> clj
Clojure 1.12.0
user=> (require 'issue)
:hi
nil
user=> (in-ns 'issue)
#object[clojure.lang.Namespace 0x3e48e859 "issue"]
issue=> (meta *ns*)
{:xyz true}

This used to work before, so I think it is a regression issue likely introduced by #1161?

Additionaly, in Clojure, The attr-map? option appears to overwrite any metadata set earlier in Clojure:
issue.clj

(ns ^{:abc 1 :xyz 2} issue "doc" {:abc 2})

(println :hi)

REPL:

> clj
Clojure 1.12.0
user=> (require 'issue)
:hi
nil
user=> (in-ns 'issue)
#object[clojure.lang.Namespace 0x5b22b970 "issue"]
issue=> (meta *ns*)
{:abc 2, :xyz 2, :doc "doc"}

It is not clear to me why the ns macro supports both explicit metadata and the attr-map? option, as the seem to serer similar purposes.

Thanks