Re-enable gen_tasks test

BUG=skia:6070

Change-Id: Ibbe2269254273f649d403e4598dd45f65638813f
Reviewed-on: https://skia-review.googlesource.com/6984
Reviewed-by: Ravi Mistry <rmistry@google.com>
Commit-Queue: Eric Boren <borenet@google.com>
3 files changed
tree: 791f114aa14f576e1153aed2d4428ee31aeb3e81
  1. .gitignore
  2. infra/
  3. recipe_modules/
  4. recipes.py
  5. recipes/
  6. test.py