Need help understanding class member meanings

I noticed that you can put class members outside of the constructor in a class such as

```coffeescript
class Test
@foo = "foo" # static variable
bar = "bar" # private variable
baz: "baz" # instance variable accessible by @baz
```

The last one, the 'instance variable' seems to work, but has unexpected behavior when it comes to arrays. Other values are re-initialized across instantiations, but array variables are not

```coffeescript
class Test
here: []
test: 0

constructor: (value, value2) ->
@here.push value
console.log @here
console.log @test
@test = value2
console.log @test

testa = new Test 'a', 1
testb = new Test 'b', 2
```

As you can see here, `test` always starts out at 0, but `here` doesn't get re-initialized and will keep getting new values pushed onto the old array, which I find odd.

Output:
```
[ 'a' ]
0
1
[ 'a', 'b' ]
0
2
```

The issue provides a CoffeeScript class example but names no source file or test. Start by reproducing the example and inspecting the generated JavaScript for the scalar and array members. A complete resolution would need to establish whether the behavior is intended and, if not, define the expected initialization semantics.

Written by the indexing model from the issue text.