[Fix] Codegen for external calls.

[d0cd]

Fixes #2918.

[codecov]

Codecov Report

Merging #2924 (bef1d5c) into testnet3 (662cc7d) will increase coverage by 0.00%.
The diff coverage is 50.00%.

@@            Coverage Diff            @@
##           testnet3    #2924   +/-   ##
=========================================
  Coverage     78.88%   78.89%           
=========================================
  Files           164      164           
  Lines          5509     5511    +2     
  Branches       5509     5511    +2     
=========================================
+ Hits           4346     4348    +2     
  Misses         1163     1163           

Files	Coverage Δ
...ler/passes/src/code_generation/visit_statements.rs	75.36% <100.00%> (ø)
...er/passes/src/code_generation/visit_expressions.rs	72.37% <0.00%> (ø)

... and 1 file with indirect coverage changes

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