Bug-Fix: ABI inferToSlice nil testcases

[ahangsu]

Description

A follow-up PR from #3823, adding one moar testcase to test inferToSlice will error when passing a nil with unexpected type (i.e., type other than slice or array).

[tzaffi]

LGTM

[jasonpaulos]

Looks good

[michaeldiamant]

@ahangsu Thanks for bringing in my feedback around additional test cases. ☕

[codecov-commenter]

Codecov Report

Merging #3826 (b312bb1) into master (32cfc42) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3826   +/-   ##
=======================================
  Coverage   49.99%   49.99%           
=======================================
  Files         392      392           
  Lines       68495    68491    -4     
=======================================
- Hits        34242    34240    -2     
+ Misses      30497    30496    -1     
+ Partials     3756     3755    -1     

Impacted Files	Coverage Δ
data/abi/abi_encode.go	62.50% <ø> (+1.23%)	⬆️
ledger/blockqueue.go	82.18% <0.00%> (-2.88%)	⬇️
data/abi/abi_type.go	87.67% <0.00%> (-0.95%)	⬇️
data/transactions/verify/txn.go	44.15% <0.00%> (-0.87%)	⬇️
catchup/service.go	68.88% <0.00%> (-0.75%)	⬇️
ledger/acctupdates.go	68.51% <0.00%> (-0.66%)	⬇️
util/metrics/counter.go	80.95% <0.00%> (+2.38%)	⬆️
util/metrics/gauge.go	70.66% <0.00%> (+2.66%)	⬆️
ledger/tracker.go	74.67% <0.00%> (+3.00%)	⬆️
... and 1 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 17c0fee...b312bb1. Read the comment docs.

[michaeldiamant]

@ahangsu Thanks for the effort to add test cases here. ☕