These tests are touched in D149757 and to reduce the number of changes
in that patch, the tests are updated here. The test format is fixed
according to the rules:
- # for actual comments;
- RUN and CHECK lines are specified without #;
- all comment markers should have a space between them and the rest of the line (e.g. # This is a comment).
In some cases lines are reordered to make CHECK commands closer to the
corresponding RUN lines.
No other changes are made.