C error: cannot convert 'struct array' to 'struct string *'

[trondsg]

V doctor:

V full version: V 0.4.7 7baff15

CC version: cc (Ubuntu 9.4.0-1ubuntu1~20.04.2) 9.4.0
thirdparty/tcc: N/A

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

type Either = string | int

fn tag(params ...Either) int {
	return 0
}

fn div(params ...Either) int {
	return tag(params)
}

What did you expect to see?

compilation complete ok

What did you see instead?

================== C compilation error (from tcc): ==============
cc: /tmp/v_1000/liveview_bug.01J8NVCRNQZEBSJ5FMBMQZ2DW7.tmp.c:13255: error: cannot convert 'struct array' to 'struct string *'
=================================================================
(You can pass `-cg`, or `-show-c-output` as well, to print all the C error messages).
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 .

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