fix(gnovm): prevent cyclic references in struct declarations

[ltzmaxwell]

Address #2008.

In this pull request, we're implementing a special handling for struct declarations. Due to their unique nature, we must meticulously search through their fields to identify potential cyclic reference.

Contributors' checklist...

• [*] Added new tests, or not needed, or not feasible
• Provided an example (e.g. screenshot) to aid review or the PR is self-explanatory
• Updated the official documentation or not needed
• [*] No breaking changes were made, or a BREAKING CHANGE: xxx message was included in the description
• Added references to related issues and PRs
• Provided any useful hints for running manual tests
• Added new benchmarks to generated graphs, if any. More info here.

[codecov]

Codecov Report

Attention: Patch coverage is 76.00000% with 6 lines in your changes are missing coverage. Please review.

Project coverage is 52.00%. Comparing base (8cc5636) to head (0442b2a).
Report is 49 commits behind head on master.

Files	Patch %	Lines
gnovm/pkg/gnolang/preprocess.go	62.50%	5 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2081      +/-   ##
==========================================
+ Coverage   46.27%   52.00%   +5.73%     
==========================================
  Files         483      388      -95     
  Lines       68851    63348    -5503     
==========================================
+ Hits        31862    32946    +1084     
+ Misses      34356    27729    -6627     
- Partials     2633     2673      +40     

Flag	Coverage Δ
gnovm	42.07% <76.00%> (?)

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[petar-dambovaliev]

This might be solvable by adding some logic in transcribe, without a dependency graph.

This might be a better place than transcribe.

var runDeclarationFor func(fn *FileNode, decl Decl)

I don't know. Try it out and see what is the most appropriate place for this.

[ltzmaxwell]

This might be solvable by adding some logic in transcribe, without a dependency graph.

This might be a better place than transcribe.

var runDeclarationFor func(fn *FileNode, decl Decl)

I don't know. Try it out and see what is the most appropriate place for this.

This is great and proves to be the right way to go. It's already updated, please take a look @petar-dambovaliev .