Expand variables inside macros without parameters and jobs
the same way as they are expanded inside macros with parameters
and job templates.
Make tags behave inside macros without parameters and jobs
the same way as they are expanded inside macros with parameters
and job templates.
Update or fix affected tests.
Story: 2010588
Story: 2010963
Story: 2010535
Task: 47394
Task: 49069
Task: 47151
Change-Id: Ie05ae6aa386c62ebbf68dd3e2c7001a4e444a47a
18efe5066b