I have this piece of code:

val s: String = "Hello World!"
val pair = List(1, 2, 3, 4)

val p01 = pair zip s
val p02 = s zip pair

If i use those expressions
p01 unzip (line1)
p02 unzip (line2)

I get an warning on Line1 (postfix operator unzip should be enabled by making the implicit value scala.language.postfixOps visible.)
and an error on Line2.

1. if I add "import scala.language.postfixOps" the warning goes away but the error stay.

2. if I keep the import and add ";" after line1 everything it's fine!

3. if I keep the import and add a blank line between line1 and line2 it's fine also!

4. Interesting: If I do not have the import statement but keep a blank line between two lines
   I get the warnings but it works.

I've seen this behavior so far only for "unzip".

Here's the code:
"
val s: String = "Hello World!"
val pair = List(1, 2, 3, 4)

val p01 = pair zip s
val p02 = s zip pair

//import scala.language.postfixOps

//if I have a line in between or ";" after the first line no warnings or errors!
p01 unzip
p02 unzip
*/