Improve CQL Error Message on Subtract

[alexanderkiel]

Also do not log expected errors on single expression evaluation because that results in a very high amount of logging.

[codecov]

Codecov Report

Merging #755 (2b76d13) into develop (ebc0762) will increase coverage by 0.04%.
The diff coverage is 96.34%.

@@             Coverage Diff             @@
##           develop     #755      +/-   ##
===========================================
+ Coverage    93.58%   93.62%   +0.04%     
===========================================
  Files          233      233              
  Lines        14300    14362      +62     
  Branches       390      391       +1     
===========================================
+ Hits         13382    13447      +65     
+ Misses         528      524       -4     
- Partials       390      391       +1     

Impacted Files	Coverage Δ
...fhir-structure/src/blaze/fhir/spec/type/system.clj	91.66% <92.30%> (+0.03%)	⬆️
modules/cql/src/blaze/elm/date_time.clj	93.75% <94.28%> (+0.61%)	⬆️
modules/anomaly/src/blaze/anomaly.clj	100.00% <100.00%> (ø)
...ules/cql/src/blaze/elm/compiler/type_operators.clj	83.19% <100.00%> (+0.73%)	⬆️
modules/cql/src/blaze/elm/deps_infer.clj	77.50% <100.00%> (+0.07%)	⬆️
modules/cql/src/blaze/elm/nil.clj	100.00% <100.00%> (ø)
modules/cql/src/blaze/elm/protocols.clj	100.00% <100.00%> (ø)
modules/cql/src/blaze/elm/string.clj	100.00% <100.00%> (ø)
.../src/blaze/fhir/operation/evaluate_measure/cql.clj	93.45% <100.00%> (+0.20%)	⬆️