V parser segfault with v -silent bug6.v, discovered through radamsa

[spytheman]

V doctor:

V full version: V 0.4.7 c92577e.75d65a0
OS: linux, Ubuntu 20.04.6 LTS
Processor: 4 cpus, 64bit, little endian, Intel(R) Core(TM) i3-3225 CPU @ 3.30GHz

getwd: /space/v/oo
vexe: /space/v/oo/v
vexe mtime: 2024-08-21 10:37:35

vroot: OK, value: /space/v/oo
VMODULES: OK, value: /home/delian/.vmodules
VTMP: OK, value: /tmp/v_1000

Git version: git version 2.45.2
Git vroot status: weekly.2024.34-20-g423a94aa
.git/config present: true

CC version: cc (Ubuntu 10.5.0-1ubuntu1~20.04) 10.5.0
thirdparty/tcc status: thirdparty-linux-amd64 0134e9b9

What did you do?
./v -g -o vdbg cmd/v && ./vdbg -silent bug6.v
See attached file bug6.v

What did you expect to see?

V should not segfault

What did you see instead?

#1 13:16:35 ^ master /space/v/oo>./vdbg -silent bug6.v
Segmentation fault (core dumped)

bug6.v.txt

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[spytheman]

Still segfaults with latest V 18f8999 .

[spytheman]

It is fixed by the latest V e3ceb58 :