Parser unnecessarily lenient to multiple expressions on one line

[lihaoyi]

The following snippet works and is treated as two separate statements, though it really shouldn't compile at all, and does not in the normal Scala REPL or normal Scala files. The code we are using to split our block into statements and mangle them to add the res_* assignments is probably being too lenient.

Welcome to the Ammonite Repl COMMIT-90afc77
(Scala 2.11.8 Java 1.8.0_102)
haoyi-haoyi@ "lol" "omg"
res0_0: String = "lol"
res0_1: String = "omg"

[lihaoyi]

Fixed by 0097dc5