array.pop() ineffective in repl without attribution of the result

[davlgd]

Describe the bug

If I use array.pop() in the repl, it's not effective except if the result is attributed to a variable.

Reproduction Steps

In the V repl, I get this:

>>> mut values := [1, 2, 3]
>>> values.pop()
3
>>> values
[1, 2, 3]
>>> removed := values.pop()
>>> values
[1, 2]

In a V application, it's ok:

fn main() {
	mut values := [1, 2, 3]
	println('before: ${values}')
	values.pop()
	println('after: ${values}')
}

v run main.v
before: [1, 2, 3]
after: [1, 2]

Expected Behavior

Get the same behavior from code and repl

Current Behavior

In the repl, values.pop() is ineffective, removed := values.pop() is ok

Possible Solution

No response

Additional Information/Context

No response

V version

0.4.6 c412b9f

Environment details (OS name and version, etc.)

V full version: V 0.4.6 c412b9f
OS: macos, macOS, 14.5, 23F79
Processor: 12 cpus, 64bit, little endian, Apple M3 Pro

getwd: /Users/davlgd/Documents/code/clever/vTest
vexe: /opt/homebrew/Cellar/vlang/0.4.6_1/libexec/v
vexe mtime: 2024-05-20 18:06:54

vroot: OK, value: /opt/homebrew/Cellar/vlang/0.4.6_1/libexec
VMODULES: OK, value: /Users/davlgd/.vmodules
VTMP: OK, value: /tmp/v_501

Git version: git version 2.39.3 (Apple Git-146)
Git vroot status: 4.3.7 (58345 commit(s) behind V master)
.git/config present: false

CC version: Apple clang version 15.0.0 (clang-1500.3.9.4)
thirdparty/tcc: N/A

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