MuranoPL treats iterator as single object instead of list for list contract

[Konstantin]

How to reproduce
Create following classes

Name: T
​
Properties:
  prop:
    Contract:
      - $.string()
    Default: null
    Usage: InOut
​
---
​
Name: TestReal
Methods:
  test:
    Body:
      - $t: new(T, $this, prop => ['1', '1', '1'].where($))
      - Return: $t.prop[1]

Run TestReal::test() method

Expected result
> '1'

Observed result:
IndexError: tuple index out of range

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/334591

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/334591
Committed: https://git.openstack.org/cgit/openstack/murano/commit/?id=6aedcda8979f0db66aa4c31119029b9c599188a7
Submitter: Jenkins
Branch: master

commit 6aedcda8979f0db66aa4c31119029b9c599188a7
Author: Konstantin Snihyr <email address hidden>
Date: Mon Jun 27 20:41:42 2016 +0300

    Allows Spec::transform treat generators as list

    This patch extend list mapping for TypeSpec.
    Now contracts can transform generator expression to list.

    Change-Id: I9d8614ee53021b96e8a99f93c2e12710f0b30983
    Closes-bug: 1596007

[Davanum Srinivas (DIMS) (dims-v)]

This issue was fixed in the openstack/murano 3.0.0.0b2 development milestone.