Bug 1322301 - Add flags to GeneratedFiles in the tup backend; r=chmanchester

MozReview-Commit-ID: 5N6jm6RMitD

--HG--
extra : rebase_source : e64cc3dab5633adcf47b64d19f337af98a2810c5

python/mozbuild/mozbuild/backend/tup.py

@@ -245,6 +245,7 @@ class TupOnly(CommonBackend, PartialBackend):
             ])
             full_inputs = [f.full_path for f in obj.inputs]
             cmd.extend(full_inputs)
+            cmd.extend(shell_quote(f) for f in obj.flags)
 
             outputs = []
             outputs.extend(obj.outputs)