cgen error in auto generated str() method of an enum with duplicate enum keys

[spytheman]

V doctor:

V full version: V 0.4.6 a7db095.22df56f
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: 2024-07-23 06:24:44

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.2024.30-2-g22df56fa (1 commit(s) behind V master)
.git/config present: true

CC version: cc (Ubuntu 10.5.0-1ubuntu1~20.04) 10.5.0
thirdparty/tcc status: thirdparty-linux-amd64 a0799a5b

What did you do?
v -g -o vdbg cmd/v && vdbg b.v

const one = 1

enum MyEnum {
	a = one
	b
	c = one
}

$for val in MyEnum.values {
	println('> name: ${val.name} | value: ${val.value}')
}

What did you expect to see?

a checker error, that a and c are duplicates

What did you see instead?

================== C compilation error (from tcc): ==============
cc: /tmp/v_1000/b.01J3F8XFC74K61874J8G3H137K.tmp.c:2172: error: duplicate case value
=================================================================
(You can pass `-cg`, or `-show-c-output` as well, to print all the C error messages).

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