function name mangle when create 32bit dll

[kbkpbot]

Describe the bug

When create a 32bit dll with MSVC, export function names were mangled, for example

in c code, func function name will become _func or _func@8

Reproduction Steps

code.v

fn C._vinit_caller()
fn C._vcleanup_caller()

@[export: 'func']
@[callconv: 'stdcall']
fn func() {
	C._vinit_caller()
	println('Begin DLL')
	for i in 0 .. 10 {
		println('${i}')
	}
	println('End DLL')
	C._vcleanup_caller()
}

v code.v -shared -cc msvc -m32 
tcc -impdef code.dll -v -o code.def

open the generated code.def file.

Expected Behavior

open the generated code.def file. show :

LIBRARY code.dll

EXPORTS
func
_vcleanup_caller
_vinit_caller

Current Behavior

open the generated code.def file. show :

LIBRARY code.dll

EXPORTS
_func@0
_vcleanup_caller
_vinit_caller

Possible Solution

generate a temp.def which contain export function names, then append a /DEF to the .rsp file

... /DEF:"D:\v\bug\shared\temp.def"

Additional Information/Context

-m32 is skipped by msvc.

V version

V 0.4.9 f9d3bd3

Environment details (OS name and version, etc.)

V full version	V 0.4.9 f9d3bd3
OS	windows, Microsoft Windows 10 企业版 LTSC 19044 64 位
Processor	16 cpus, 64bit, little endian, AMD Ryzen 7 7840H with Radeon 780M Graphics
Memory	14.91GB/27.69GB
V executable	D:\v\v\v\v.exe
V last modified time	2025-01-20 00:57:58
V home dir	OK, value: D:\v\v\v
VMODULES	OK, value: C:\Users\DDT.vmodules
VTMP	OK, value: C:\Users\DDT\AppData\Local\Temp\v_0
Current working dir	OK, value: D:\v\bug\shared
Git version	git version 2.43.0.windows.1
V git status	weekly.2025.03-5-gf9d3bd39-dirty (107 commit(s) behind V master)
.git/config present	true
cc version	N/A
gcc version	N/A
clang version	N/A
msvc version	用于 x86 的 Microsoft (R) C/C++ 优化编译器 19.39.33523 版
tcc version	tcc version 0.9.28rc 2024-12-30_mob@68000c01* (x86_64 Windows)
tcc git status	N/A
emcc version	N/A
glibc version	N/A

[huly-for-github]

Connected to Huly®: V_0.6-22110

[kbkpbot]

default 64bit has no this problem