[builder error] match + &

[russo-2025]

Describe the bug

==================
C:/Users/russo/AppData/Local/Temp/v_0/bug1.01J2KZSNTGBA77PHH8BD7V62CY.tmp.c:6979: warning: implicit declaration of function 'tcc_backtrace'
C:/Users/russo/AppData/Local/Temp/v_0/bug1.01J2KZSNTGBA77PHH8BD7V62CY.tmp.c:13360: error: lvalue expected
...
==================
(Use `v -cg` to print the entire error message)

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 .

C:\Users\russo\Desktop\vbugs>v run bug1.v
==================
C:/Users/russo/AppData/Local/Temp/v_0/bug1.01J2KZWH3Z9FQ7DWEPSBXQMSBC.tmp.c:6979: warning: implicit declaration of function 'tcc_backtrace'
C:/Users/russo/AppData/Local/Temp/v_0/bug1.01J2KZWH3Z9FQ7DWEPSBXQMSBC.tmp.c:13360: error: lvalue expected
...
==================
(Use `v -cg` to print the entire error message)

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 .

Reproduction Steps

module main

pub struct Expr1 {}
pub struct Expr2 {}

pub type Expr = Expr1 | Expr2

pub struct Gen {
}

fn (mut g Gen) foo(mut expr &Expr1) {
}

pub fn (mut g Gen) bar(mut expr &Expr) {
	match mut expr {
		Expr1 { g.foo(mut &expr) } // <--- &
		Expr2 {}
	}
}

fn main() {
}

Expected Behavior

ok

Current Behavior

builder error

Possible Solution

No response

Additional Information/Context

No response

V version

V 0.4.6 7908957

Environment details (OS name and version, etc.)

V full version: V 0.4.6 58a8fc6.7908957
OS: windows, Windows 10 Pro v19042 64-bit
Processor: 16 cpus, 64bit, little endian,

getwd: M:_projects_skyrim\papyrus-compiler
vexe: M:_dev\vlang\v.exe
vexe mtime: 2024-07-12 16:28:32

vroot: OK, value: M:_dev\vlang
VMODULES: OK, value: C:\Users\russo.vmodules
VTMP: OK, value: C:\Users\russo\AppData\Local\Temp\v_0

Git version: git version 2.45.1.windows.1
Git vroot status: weekly.2024.20-247-g79089578
.git/config present: true

CC version: Error: 'cc' is not recognized as an internal or external command,
operable program or batch file.

thirdparty/tcc: N/A

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