feat[tool]: add all imported modules to -f annotated_ast output

[charles-cooper]

What I did

How I did it

How to verify it

Commit message

this commit adds all imported modules to `-f annotated_ast`
output. this includes recursively imported modules. this is a tooling
feature, so that tools don't need to invoke the compiler multiple
and inspect import statements in order to find the ASTs for imported
modules.

Description for the changelog

Cute Animal Picture

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.82%. Comparing base (fdc05d6) to head (2994676).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4209      +/-   ##
==========================================
- Coverage   91.35%   88.82%   -2.53%     
==========================================
  Files         110      110              
  Lines       15789    15810      +21     
  Branches     2674     2678       +4     
==========================================
- Hits        14424    14044     -380     
- Misses        931     1256     +325     
- Partials      434      510      +76     

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[cyberthirst]

is operator checks for identity, not equality

[charles-cooper]

yea, that's what I meant by object ("pointer") equality

[cyberthirst]

can we add a test for recursive imports?

[charles-cooper]

can we add a test for recursive imports?

would you mind helping contribute these?

[cyberthirst]

with #4229 we could add the imports also to -f ast, right?

edit: fixed link

[charles-cooper]

with #4229 we could add the imports also to -f ast, right?

edit: fixed link

yes, we could