(closes #2823) Parse unresolved symbols with parenthesis as calls

[sergisiso]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.89%. Comparing base (89ed5af) to head (b6409db).
⚠️ Report is 81 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3041   +/-   ##
=======================================
  Coverage   99.89%   99.89%           
=======================================
  Files         375      375           
  Lines       53286    53345   +59     
=======================================
+ Hits        53231    53290   +59     
  Misses         55       55           

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[sergisiso]

@arporter Now that we have released, this is ready for another look. Since now we do indirect imports, I could finally remove the whole enhance_tree_information

[arporter]

Thanks Sergi, it's great to see the simplifications to the NEMO scripts.
I was all set to say "just minor things" but then realised that character substrings are still likely to be a problem - see inline. This is partly because fparser always seems to create a Subscript_Triplet whenever it sees a colon.

[sergisiso]

@arporter Your coment got me worried that we were infering the wrong type for character substrings but we do not, they end up as UnresolvedType. The node type has not been changed by this PR, so I suggest we discuss character substring in a separate issue. This is ready for review.

[arporter]

All good now, thanks for digging into the character-string issue and apologies for worrying you unnecessarily :-)
I've brought the branch to master and am double checking the IT. Once they come back I'll proceed to merge.

[arporter]

Integration tests were all green. Will proceed to merge.