[bugfix] List inherited pipeline hooks with the -L option

[ekouts]

Closes #1566.

[vkarak]

This implementation is very close to this one:

https://github.com/eth-cscs/reframe/blob/67e66aad96ae751186c2efa58d319f34b6a394ba/reframe/core/pipeline.py#L84

I think we should have a class method that will iterate over the hooks walking through the mro. This will be used also in the place shown above.

[ekouts]

@vkarak In the listing of the tests with -L do we want to print disabled hooks as well?

[vkarak]

@vkarak In the listing of the tests with -L do we want to print disabled hooks as well?

I thought the same thing yesterday, but I don't have a strong opinion. For the moment I would say, whichever is the most straightforward to implement.

[codecov-io]

Codecov Report

Merging #1597 (19ff896) into master (7ee99e8) will decrease coverage by 0.18%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1597      +/-   ##
==========================================
- Coverage   87.80%   87.62%   -0.19%     
==========================================
  Files          45       45              
  Lines        7112     7258     +146     
==========================================
+ Hits         6245     6360     +115     
- Misses        867      898      +31     

Impacted Files	Coverage Δ
reframe/frontend/cli.py	79.51% <ø> (-0.25%)	⬇️
reframe/core/pipeline.py	92.25% <100.00%> (+0.18%)	⬆️
reframe/utility/osext.py	84.71% <0.00%> (-7.86%)	⬇️
reframe/core/runtime.py	89.63% <0.00%> (-4.88%)	⬇️
reframe/frontend/executors/policies.py	99.33% <0.00%> (-0.01%)	⬇️
reframe/frontend/check_filters.py
reframe/frontend/filters.py	100.00% <0.00%> (ø)
reframe/utility/__init__.py	91.79% <0.00%> (+0.23%)	⬆️
... and 3 more

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[vkarak]

@jenkins-cscs retry dom