catch function calls in glue interpolation

[MichaelChirico]

Closes #2029

[codecov-commenter]

Codecov Report

Merging #2033 (d02201e) into main (f9bf506) will not change coverage.
The diff coverage is 100.00%.

❗ Current head d02201e differs from pull request most recent head 2b3afc6. Consider uploading reports for the commit 2b3afc6 to get more accurate results

@@           Coverage Diff           @@
##             main    #2033   +/-   ##
=======================================
  Coverage   98.55%   98.55%           
=======================================
  Files         113      113           
  Lines        4994     4994           
=======================================
  Hits         4922     4922           
  Misses         72       72           

Files Changed	Coverage Δ
R/object_usage_linter.R	99.42% <100.00%> (ø)

[AshesITR]

test-package seems to have hung (for > 1h) - restarted it.