Do not add implied branch matchers in project-templates

We parse the project-pipeline definition of a job at the location
of the project-pipeline.  This includes both 'project' stanzas and
'project-templates' which are parsed in exactly the same way.  This
normally gives us the behavior we expect in that the job variants
defined by the project or project-template appear to be defined in
the location of the project or project-template.  However, in one
case, we want a 'late-binding' rather than 'early-binding' behavior.

When it comes to calculating implied branch matchers, we want to
use the value that would be derived if there were no project-template,
and instead the job were simply defined on the project stanza itself.

What is intended to happen is that project-pipeline job variants in
a config project should never have implied branch matchers (since
config projects don't have more than one branch).  However, project-
pipeline job variants on in-repo project stazas should get an implied
branch matcher for the branch it's defined on.  This is how we end up
with behavior where the project definition in a project's master branch
controls behavior only on the master branch (unless branches are
explicitly specified), and the definition in a stable branch controls
only the stable branch.

That behavior should happen regardless of where a project-template is
defined.  Currently we are setting an implied branch matcher for job
variants in a project template at the location of definition.  Instead,
set them when the job is actually used in a project.

Change-Id: I5c8fbb3e0a2ecfac8bd95795be002e8cd15e61db
diff --git a/tests/print_layout.py b/tests/print_layout.py
index a295886..055270f 100644
--- a/tests/print_layout.py
+++ b/tests/print_layout.py
@@ -59,6 +59,14 @@
             if fn in ['zuul.yaml', '.zuul.yaml']:
                 print_file('File: ' + os.path.join(gitrepo, fn),
                            os.path.join(reporoot, fn))
+        for subdir in ['.zuul.d', 'zuul.d']:
+            zuuld = os.path.join(reporoot, subdir)
+            if not os.path.exists(zuuld):
+                continue
+            filenames = os.listdir(zuuld)
+            for fn in filenames:
+                print_file('File: ' + os.path.join(gitrepo, subdir, fn),
+                           os.path.join(zuuld, fn))
 
 
 if __name__ == '__main__':