Lint for attempting to use `for` on something that isn't an iterator function like `pairs` or `ipairs`

Example of bad code that will not work as expected:
```lua
local fooTable = { greeting = "hi!" }
local barTable = { "one" }

for k, v in fooTable do
    print(k .. " is " .. v)
end

for k, v in barTable do
    print(k .. " is " .. v)
end
```

Instead:
```lua
for k, v in pairs(fooTable) do
    print(k .. " is " .. v)
end

for k, v in ipairs(barTable) do
    print(k .. " is " .. v)
end
```