V formatter panics on code generated by C2V

[odiroot]

V doctor:

V full version: V 0.4.4 ac2dcc2.8609ea1
OS: linux, "EndeavourOS Linux"
Processor: 12 cpus, 64bit, little endian, AMD Ryzen 5 PRO 4650U with Radeon Graphics

getwd: /home/odi/Repos/vclap-experiment/src/vnkxcb
vexe: /home/odi/Repos/vlang/v
vexe mtime: 2024-02-04 18:33:35

vroot: OK, value: /home/odi/Repos/vlang
VMODULES: OK, value: /home/odi/.vmodules
VTMP: OK, value: /tmp/v_1000

Git version: git version 2.43.0
Git vroot status: 0.4.4-185-g8609ea19
.git/config present: true

CC version: cc (GCC) 13.2.1 20230801
thirdparty/tcc status: thirdparty-linux-amd64 12f392c3

What did you do?
v fmt vnkxcb_poc.v

(Part of a bigger example)

@[translated]
module vnkxcb

type Nk_size = u32

union Nk_handle {
	ptr voidptr
	id int
}

enum Nk_plugin_alloc {
	nk_tree_node
	nk_tree_tab
}

type Nk_plugin_alloc = fn (Nk_handle, voidptr, Nk_size) voidptr

What did you expect to see?

V formatter should either sucessfully format the source file or show the errors.

What did you see instead?

V panic: as cast: cannot cast `v.ast.Enum` to `v.ast.FnType`
v hash: 8609ea1
/tmp/v_1000/vfmt.01HNTPKG4Q8RRW4WWPGHRX56EX.tmp.c:19192: at _v_panic: Backtrace
/tmp/v_1000/vfmt.01HNTPKG4Q8RRW4WWPGHRX56EX.tmp.c:19688: by __as_cast
/tmp/v_1000/vfmt.01HNTPKG4Q8RRW4WWPGHRX56EX.tmp.c:50855: by v__fmt__Fmt_fn_type_decl
/tmp/v_1000/vfmt.01HNTPKG4Q8RRW4WWPGHRX56EX.tmp.c:50820: by v__fmt__Fmt_type_decl
/tmp/v_1000/vfmt.01HNTPKG4Q8RRW4WWPGHRX56EX.tmp.c:49658: by v__fmt__Fmt_stmt
/tmp/v_1000/vfmt.01HNTPKG4Q8RRW4WWPGHRX56EX.tmp.c:49560: by v__fmt__Fmt_stmts
/tmp/v_1000/vfmt.01HNTPKG4Q8RRW4WWPGHRX56EX.tmp.c:49072: by v__fmt__fmt
/tmp/v_1000/vfmt.01HNTPKG4Q8RRW4WWPGHRX56EX.tmp.c:2357: by main__FormatOptions_format_file
/tmp/v_1000/vfmt.01HNTPKG4Q8RRW4WWPGHRX56EX.tmp.c:2241: by main__main
/tmp/v_1000/vfmt.01HNTPKG4Q8RRW4WWPGHRX56EX.tmp.c:3122: by main

Internal vfmt error while formatting file: vnkxcb_poc.v.
Encountered a total of: 1 errors.

Note
The V source file was generated using c2v wrapper on nuklear.h library.
The full translated header is here. I had to make a few small manual fixes (e.g. changing some spurious * into &).

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