Add Self to cls_ctx when inferring class interface

[codecov[bot]]

Codecov Report

Merging #719 (65a242c) into main (35e61c9) will increase coverage by 0.48%. The diff coverage is 91.48%.

@@            Coverage Diff             @@
##             main     #719      +/-   ##
==========================================
+ Coverage   83.87%   84.36%   +0.48%     
==========================================
  Files          62       62              
  Lines       12690    12706      +16     
==========================================
+ Hits        10644    10719      +75     
+ Misses       2046     1987      -59     

Files	Coverage Δ
crates/escalier_codegen/src/d_ts.rs	81.39% <100.00%> (-0.06%)	:arrow_down:
crates/escalier_hm/src/context.rs	97.84% <100.00%> (+0.03%)	:arrow_up:
crates/escalier_hm/src/folder.rs	91.82% <100.00%> (+0.06%)	:arrow_up:
crates/escalier_hm/src/infer.rs	94.55% <100.00%> (+<0.01%)	:arrow_up:
crates/escalier_hm/src/types.rs	86.02% <100.00%> (ø)
crates/escalier_hm/src/unify.rs	85.85% <100.00%> (-0.02%)	:arrow_down:
crates/escalier_hm/src/visitor.rs	37.59% <100.00%> (+0.47%)	:arrow_up:
crates/escalier_interop/src/parse.rs	91.28% <100.00%> (ø)
crates/escalier_hm/src/util.rs	76.96% <88.88%> (+0.10%)	:arrow_up:
crates/escalier_hm/src/infer_class.rs	72.22% <81.25%> (+19.52%)	:arrow_up: