Error at definition of Type

I try write this:

``` scala
type T = {
```

but get an error:

``` scala
SyntaxError: found "{", expected NamedType ~ Refinement.? | Refinement at index 9
type T = {
         ^
```

If i use scala REPL, all works fine:

``` scala
scala> type T = {
     | type X = Int
     | def x: X
     | type Y
     | def y: Y
     | }
defined type alias T
```
