No warning when not using functions from imported module.

[islonely]

Describe the bug

V gives you a warning when you import a module, but don't use it. I found a reproducible bug, that doesn't give you a warning.

Expected Behavior

Expected a warning saying math module was imported, but never used.

Current Behavior

Compiles with no warnings.

Reproduction Steps

import math { sin, cos }

fn main() {
    println('no warning')
}

Possible Solution

No response

Additional Information/Context

No response

V version

V 0.3.3 b7b6c23

Environment details (OS name and version, etc.)

V 0.3.3 b7b6c23
PS C:\Users\imado> v doctor
OS: windows, Microsoft Windows 11 Pro v22621 64-bit
Processor: 16 cpus, 64bit, little endian,
CC version: Error: exec failed (CreateProcess) with code 2: The system cannot find the file specified.
cmd: cc --version

getwd: C:\Users\imado
vmodules: C:\Users\imado.vmodules
vroot: C:\Users\imado\v
vexe: C:\Users\imado\v\v.exe
vexe mtime: 2023-02-28 03:35:39
is vroot writable: true
is vmodules writable: true
V full version: V 0.3.3 b7b6c23

Git version: git version 2.33.1.windows.1
Git vroot status: weekly.2023.09-4-gb7b6c236
.git/config present: true
thirdparty/tcc status: thirdparty-windows-amd64 1e6e7c6f