detect alignment for function declarations

[lorenzwalthert]

Closes #959.

[lorenzwalthert]

A pitty that touchstone run's are currently not sucessful, this might have speed implications... Let's wait.

[github-actions]

This is how benchmark results would change (along with a 95% confidence interval in relative change) if fe41786 is merged into main:

• ❗🐌cache_applying: 27.9ms -> 33.2ms [+18.14%, +20.1%]
•   :ballot_box_with_check:cache_recording: 1.38s -> 1.38s [-0.67%, +1.1%]
•   :ballot_box_with_check:without_cache: 3.65s -> 3.65s [-0.52%, +0.41%]

Further explanation regarding interpretation and methodology can be found in the documentation.

[codecov-commenter]

Codecov Report

Merging #968 (8a83039) into main (56d4a04) will increase coverage by 0.17%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #968      +/-   ##
==========================================
+ Coverage   89.89%   90.07%   +0.17%     
==========================================
  Files          47       47              
  Lines        2653     2660       +7     
==========================================
+ Hits         2385     2396      +11     
+ Misses        268      264       -4     

Impacted Files	Coverage Δ
R/detect-alignment-utils.R	97.22% <100.00%> (+6.31%)	⬆️
R/detect-alignment.R	97.75% <100.00%> (+0.02%)	⬆️
R/rules-spaces.R	98.33% <100.00%> (ø)

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[github-actions]

This is how benchmark results would change (along with a 95% confidence interval in relative change) if 7e891fb is merged into main:

• ❗🐌cache_applying: 26.3ms -> 30.2ms [+14.29%, +15.64%]
•   :ballot_box_with_check:cache_recording: 1.28s -> 1.28s [-0.3%, +0.74%]
•   :ballot_box_with_check:without_cache: 3.4s -> 3.4s [-0.66%, +0.55%]

Further explanation regarding interpretation and methodology can be found in the documentation.