[Checkins] [zopefoundation/Zope] d4fe17: Remove the dependency on sourcecodegen.

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/Zope
  Commit: d4fe17c0b359372638d4b5e9e658a0e363361688
      https://github.com/zopefoundation/Zope/commit/d4fe17c0b359372638d4b5e9e658a0e363361688
  Author: Steffen Allner <sa at gocept.com>
  Date:   2017-05-03 (Wed, 03 May 2017)

  Changed paths:
    M requirements-full.txt
    M setup.py
    M src/Products/PageTemplates/expression.py
    M versions-prod.cfg

  Log Message:
  -----------
  Remove the dependency on sourcecodegen.

We do not need to convert the ast to source code before passing it to the
RestrictedPython machinery. It takes the result of the 2.7 ast.parse() as well.