X3: Cover position_tagged's features with test

[denzor200]

No description provided.

[Kojoley]

Is there any particular reason for this? I'm pretty sure it is tested indirectly via error handler tests,

I don't have time to deal with CI currently, maybe next week. Probably CI checksout master branch for superrepo on pull requests.

[denzor200]

I'm pretty sure it is tested indirectly via error handler tests,

I haven't found any references to x3::position_cache in the tests.

Is there any particular reason for this?

position_cache's internals will be patched in #698

[Kojoley]

I'm pretty sure it is tested indirectly via error handler tests,

I haven't found any references to x3::position_cache in the tests.

spirit/include/boost/spirit/home/x3/support/utility/error_reporting.hpp

Line 73 in e30073e

position_cache<std::vector<Iterator>> pos_cache;

[denzor200]

I just looked error handler tests. I can't find any test case when x3::error_handler used with parsing into x3::position_tagged attribute. Is it exists?

[denzor200]

PR updated. Added test case for x3::error_handler with x3::position_tagged, test case for x3::position_cache was deleted.