Log Message:
devel/ruby-parser: update to 3.11.0

=== 3.11.0 / 2018-02-14

* 1 major enhancement:

  * Expand to support ruby 2.5 parsing.

* 3 bug fixes:

  * Fixed %r lexing when delimiter is also used in (?X) group.
  * Restore newline after label to detect required kwarg. (presidentbeef)
  * Return `s(:self)` target for `self[]` calls. (presidentbeef)