[OpenSIPS-Devel] [OpenSIPS/opensips] c44264: Fix finding the script functions in assigments.

[Bogdan-Andrei Iancu]

  Branch: refs/heads/2.2
  Home:   https://github.com/OpenSIPS/opensips
  Commit: c44264e2ab54f1a33e4d5ce0db686d86cf3cf2fd
      https://github.com/OpenSIPS/opensips/commit/c44264e2ab54f1a33e4d5ce0db686d86cf3cf2fd
  Author: Bogdan-Andrei Iancu <bogdan at opensips.org>
  Date:   2017-01-25 (Wed, 25 Jan 2017)

  Changed paths:
    M route_struct.c

  Log Message:
  -----------
  Fix finding the script functions in assigments.

Do an aggressive search by digging through all possible ACTIONS or EXPRessions to see if a function is used in the script.
Fix for #1022

(cherry picked from commit 87a3a412aa720e858b126a5c2dc0ffe7c6c28530)