cgen error for fixed array of fixed arrays in const

[gechandesu]

Describe the bug

Fixed array of fixed arrays in const turn to an error if the array element is another const.

This works fine:

const f = [u8(0), 1, 2]!

const ff = [[u8(1), 2, 3]!, [u8(5), 4, 3]!, f]

fn main() {
	println(ff)
}

Reproduction Steps

~ $ v vet fixed_arr_const.vv
fixed_arr_const.vv:3: notice: Use a fixed array instead of a dynamic one

So with this...

const f = [u8(0), 1, 2]!

const ff = [[u8(1), 2, 3]!, [u8(5), 4, 3]!, f]!

fn main() {
	println(ff)
}

C compilation fails.

Remving f from ff array solves the problem.

Expected Behavior

Successful compilation or V checker error?

Current Behavior

~ $ v run fixed_arr_const.vv
================== C compilation error (from tcc): ==============
cc: /tmp/v_1000/fixed_arr_const.01JJAEMTRDKZ1HYHKC8MJZJRMS.tmp.c:1573: error: initializer element is not constant
=================================================================
(You can pass `-cg`, or `-show-c-output` as well, to print all the C error messages).
builder error: 
==================
C error found. It should never happen, when compiling pure V code.
This is a V compiler bug, please report it using `v bug file.v`,
or goto https://github.com/vlang/v/issues/new/choose .
You can also use #help on Discord: https://discord.gg/vlang .

Possible Solution

No response

Additional Information/Context

No response

V version

V 0.4.9 da5bb68

Environment details (OS name and version, etc.)

v doctor

V full version	V 0.4.9 5ec9bb5.da5bb68
OS	linux, Linux version 6.6.8-arch1-1 (linux@archlinux) (gcc (GCC) 13.2.1 20230801, GNU ld (GNU Binutils) 2.41.0) #1 SMP PREEMPT_DYNAMIC Thu, 21 Dec 2023 19:01:01 +0000
Processor	16 cpus, 64bit, little endian, 12th Gen Intel(R) Core(TM) i5-1240P
Memory	4.71GB/15.35GB
V executable	/home/ge/.vlang/v
V last modified time	2025-01-23 20:38:12
V home dir	OK, value: /home/ge/.vlang
VMODULES	OK, value: /home/ge/.vmodules
VTMP	OK, value: /tmp/v_1000
Current working dir	OK, value: /home/ge
Git version	git version 2.48.1
V git status	weekly.2025.03-28-gda5bb68b
.git/config present	true
cc version	cc (GCC) 14.2.1 20240910
gcc version	gcc (GCC) 14.2.1 20240910
clang version	clang version 19.1.7
tcc version	tcc version 0.9.28rc 2024-07-31 HEAD@1cee0908 (x86_64 Linux)
tcc git status	thirdparty-linux-amd64 0134e9b9
emcc version	N/A
glibc version	ldd (GNU libc) 2.40

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[huly-for-github]

Connected to Huly®: V_0.6-21993