fix: correct type for shift expression

[ltzmaxwell]

1. This is a fix to gnolang/gno/issues/1462;
2. NOTE: This PR should be reviewed following the potential merger of #1426, from which it is both decoupled and dependent. #1426 serves as base branch of this one.
3. NOTE: Currently, this PR displays all code including that from #1426, because it is being compared to the master branch instead of differing against #1426 directly.

[petar-dambovaliev]

This is not reviewable. There is too many dependencies on other issues and prs.

[ltzmaxwell]

This is not reviewable. There is too many dependencies on other issues and prs.

that it is. hopefully I will make #1426 available next week.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 95.28796% with 9 lines in your changes missing coverage. Please review.

Project coverage is 61.10%. Comparing base (912a5db) to head (19a2cf8). Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
gnovm/pkg/gnolang/type_check.go	92.85%	4 Missing :warning:
gnovm/pkg/gnolang/values.go	87.50%	3 Missing :warning:
gnovm/pkg/gnolang/preprocess.go	98.11%	1 Missing and 1 partial :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1775      +/-   ##
==========================================
+ Coverage   60.97%   61.10%   +0.12%     
==========================================
  Files         564      564              
  Lines       75273    75359      +86     
==========================================
+ Hits        45897    46045     +148     
+ Misses      26008    25949      -59     
+ Partials     3368     3365       -3     

Flag	Coverage Δ
contribs/gnodev	61.46% <ø> (ø)
contribs/gnofaucet	14.46% <ø> (ø)
gno.land	67.92% <ø> (ø)
gnovm	66.17% <95.28%> (+0.39%)	:arrow_up:
misc/genstd	80.54% <ø> (ø)
misc/logos	20.23% <ø> (ø)
tm2	61.96% <ø> (-0.16%)	:arrow_down:

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

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[ltzmaxwell]

Hi @thehowl , this one is good to review too.

[mvertes]

I see that some tests are not passing, even if they print the correct results. This is due to eval_tests not trimming spaces in results. Let me fix this.

[thehowl]

thanks for the speedy merge @mvertes! <3