compiler bug: error: pointer expected

[keiravillekode]

Describe the bug

Compiler crash

Reproduction Steps

$ v version
V 0.4.10 21da729
$ v test temp/run_test.v
---- Testing... ----------------------------------------------------------------------------
 FAIL     0.000 ms .../temp/run_test.v
>> compilation failed:
================== C compilation error (from tcc): ==============
cc: .....tmp.c:3088: error: pointer expected
=================================================================
(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

temp/f.v

module main

struct Solution {
}

fn f() !Solution {
	mut solution := ?Solution(none)

	g := fn (mut solution ?Solution) ! {
		solution = Solution {}
	}

	g(mut &solution)!

	return error('')
}

temp/run_test.v

module main

fn test_f() {
	assert f()! == Solution {}
}

Expected Behavior

Helpful message

Current Behavior

Compiler crash

Possible Solution

No response

Additional Information/Context

No response

V version

V 0.4.10 21da729

Environment details (OS name and version, etc.)

Linux 6.11.0-26-generic #26~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC x86_64

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[huly-for-github]

Connected to Huly®: V_0.6-22983