Change in behavior of multiline entry

[mchitre]

In fjåge, we used to support multiline entry on the shell by detecting incomplete Groovy code and letting ENTER not execute, but continue on next line. This no longer seems to work.

We get:

> a = {
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
Script4.groovy: 1: unexpected token:  @ line 1, column 6.
   a = {
        ^

1 error

However, pressing ESC+ENTER does allow multiline entry as a workaround.

This issue is to discuss if we want to move to recommending ESC+ENTER as a way to do multiline entry, or whether we want to fix the multiline entry to work as it used to.