Isa logic takes class identifier

[JSAbrahams]

Tests

Happy

• Modify isa tests to check that a variable is a class (Exception)

Sad

• isa with not identifier

[codecov[bot]]

Codecov Report

Merging #391 (5986291) into v-0-3-5 (77d5b86) will decrease coverage by 0.04%. The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           v-0-3-5     #391      +/-   ##
===========================================
- Coverage    87.07%   87.02%   -0.05%     
===========================================
  Files          109      109              
  Lines        12005    12016      +11     
===========================================
+ Hits         10453    10457       +4     
- Misses        1552     1559       +7     

Impacted Files	Coverage Δ
src/check/constrain/generate/operation.rs	91.77% <100.00%> (+0.10%)	:arrow_up:
src/parse/ast/node.rs	80.08% <0.00%> (-0.81%)	:arrow_down:
src/check/constrain/generate/definition.rs	90.50% <0.00%> (+0.06%)	:arrow_up:
src/check/constrain/generate/env.rs	93.00% <0.00%> (+0.29%)	:arrow_up:
src/check/constrain/generate/statement.rs	85.10% <0.00%> (+1.01%)	:arrow_up:
tests/common.rs	38.46% <0.00%> (+1.92%)	:arrow_up: