chore(gnovm/gnofmt): Replace usage of ast.Object with ast.Ident In gnofmt

[notJoon]

Description

Removes the usage of the deprecated ast.Object type and replaces it with ast.Ident. Since ast.Ident contains name and location information, I think it would provide the information that needed in most cases.

[codecov]

Codecov Report

Attention: Patch coverage is 83.33333% with 2 lines in your changes missing coverage. Please review.

Project coverage is 54.91%. Comparing base (8ddf0d8) to head (8ba0d1a).

Files	Patch %	Lines
gnovm/pkg/gnofmt/processor.go	83.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2546      +/-   ##
==========================================
- Coverage   54.91%   54.91%   -0.01%     
==========================================
  Files         594      594              
  Lines       79297    79297              
==========================================
- Hits        43549    43547       -2     
- Misses      32458    32459       +1     
- Partials     3290     3291       +1     

Flag	Coverage Δ
contribs/gnodev	23.53% <ø> (ø)
contribs/gnofaucet	14.46% <ø> (-0.86%)	⬇️
contribs/gnokeykc	0.00% <ø> (ø)
contribs/gnomd	0.00% <ø> (ø)
gno.land	63.14% <ø> (ø)
gnovm	60.21% <83.33%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.