no error given when $for item in enum.fields and $for item in struct.values

[Delta456]

Describe the bug

There's no error given if comptime for is used incorrectly in situations like:

struct Foo{}

fn (_ Foo) hello() {}

$for i in Foo.values {
    println(i)
}

enum Test {
  one
  two
}

$for i in Test.fields {
    println(i)
}

Reproduction Steps

Write the above code and compile it

Expected Behavior

An error like cannot use enum.fields and cannot use struct.values

Current Behavior

No output or error

Possible Solution

A checker error for each of these

Additional Information/Context

No response

V version

Latest

Environment details (OS name and version, etc.)

Pop OS