(closes #2429) Make all structure constructors and functions with unknown declarations Calls

[sergisiso]

In turn this simplifies the Invoke/Kernel uplifting, because we don't have to deal with the case with Codeblocks anymore.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.95%. Comparing base (974f435) to head (895ff30).
⚠️ Report is 16 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3354      +/-   ##
==========================================
- Coverage   99.95%   99.95%   -0.01%     
==========================================
  Files         386      386              
  Lines       54215    54190      -25     
==========================================
- Hits        54193    54168      -25     
  Misses         22       22              

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[sergisiso]

@arporter @LonelyCat124 @hiker This is ready for a first review.

[arporter]

Nice, impressive simplification :-)
I just have a question about one of the changes to a test.

[sergisiso]

@arporter See response above

[arporter]

Thanks for clarifying.
Will re-run the ITs as a few things have gone on master since the last time. If they are OK then will proceed to merge.

[arporter]

Link-check failure is a timeout on the NVIDIA website. Link works for me though.

[arporter]

ITs were all green.