* Fix error from ansible-lint versions >=6.11.0.
The JSON output format of ansible-lint has changed since
6.11.0. Issue locations can have either a 'positions' or
a 'lines' member, rather than just a 'lines' member as it
was before. This fix checks which member is present, and
passes that member name to subsequent dictionary lookups.
The error was caused by the following change:
https://github.com/ansible/ansible-lint/pull/2897
* Add ansible-lint test to check each type of ansible-lint issue json.
* Change long single-line JSON in ansible test into multiline JSON.
* Fix linting errors in ansible_lint.vim.
* Handle empty answer of ansible-lint
The variable a:lines might be empty if ansible-lint exited early, in
that case json_decode would trow an error.
* Use ales JSON decode function
* Fix ansible-lint linter definition.
Use ansible-lint's feature auto-detection instead of temporary file.
For auto-detection to work, ansible project has to be also a git repository.
Don't use yaml rules. These are checked by yamllint.
Refactor pattern to work with ansible-lint >=5.0 version.
Clean-up obsolete test cases.
* Pull Request changes
