general: cleanup asn grammar

[dhalperi]

Make sure ASNs are always using typed integers
Get rid of some int vs long cases
add deprecated int functions to problematic classes to catch future misuses

Likely fixes #8009

[batfish-bot]

This change is 

[codecov]

Codecov Report

Merging #8011 (82f9eb0) into master (1254f99) will increase coverage by 0.01%.
The diff coverage is 46.15%.

@@             Coverage Diff              @@
##             master    #8011      +/-   ##
============================================
+ Coverage     74.31%   74.32%   +0.01%     
- Complexity    42886    42954      +68     
============================================
  Files          3349     3351       +2     
  Lines        168208   168452     +244     
  Branches      20157    20179      +22     
============================================
+ Hits         125001   125206     +205     
- Misses        33600    33619      +19     
- Partials       9607     9627      +20     

Impacted Files	Coverage Δ
...fish/datamodel/routing_policy/expr/ExplicitAs.java	38.88% <0.00%> (-4.87%)	⬇️
...sh/grammar/cisco_asa/AsaControlPlaneExtractor.java	19.52% <0.00%> (ø)
...sh/grammar/arista/AristaControlPlaneExtractor.java	46.55% <50.00%> (ø)
...fish/grammar/cisco/CiscoControlPlaneExtractor.java	62.11% <50.00%> (ø)
...grammar/cisco_xr/CiscoXrControlPlaneExtractor.java	44.33% <50.00%> (ø)
...fish/grammar/flatjuniper/ConfigurationBuilder.java	74.45% <100.00%> (+0.11%)	⬆️
...java/org/batfish/vendor/a10/representation/Ha.java	88.88% <0.00%> (-3.42%)	⬇️
...model/routing_policy/communities/CommunitySet.java	93.84% <0.00%> (-1.54%)	⬇️
...src/main/java/org/batfish/coordinator/PoolMgr.java	59.52% <0.00%> (-1.20%)	⬇️
...sh/vendor/a10/representation/A10Configuration.java	91.97% <0.00%> (-1.02%)	⬇️
... and 19 more

[arifogel]

Reviewed 23 of 23 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @corinaminer)