Update TObjElem to include a ::Method() variant

[kevinbarabash]

TODO:

• [x] add ::Getter() variant to TObjElem
• [x] add ::Setter() variant to TObjElem

[codecov[bot]]

Codecov Report

Merging #717 (efd3c49) into main (78e07d7) will decrease coverage by 1.96%. The diff coverage is 63.60%.

@@            Coverage Diff             @@
##             main     #717      +/-   ##
==========================================
- Coverage   85.80%   83.85%   -1.96%     
==========================================
  Files          61       62       +1     
  Lines       11814    12403     +589     
==========================================
+ Hits        10137    10400     +263     
- Misses       1677     2003     +326     

Files	Coverage Δ
crates/escalier_ast/src/class.rs	87.50% <ø> (ø)
crates/escalier_ast/src/type_ann.rs	93.75% <100.00%> (-6.25%)	:arrow_down:
crates/escalier_hm/src/infer_pattern.rs	92.69% <ø> (-0.07%)	:arrow_down:
crates/escalier_hm/src/lib.rs	100.00% <ø> (ø)
crates/escalier_interop/src/parse.rs	91.28% <100.00%> (-0.38%)	:arrow_down:
crates/escalier_parser/src/parser.rs	98.09% <100.00%> (+<0.01%)	:arrow_up:
crates/escalier_hm/src/infer.rs	94.45% <93.93%> (+0.32%)	:arrow_up:
crates/escalier_hm/src/folder.rs	91.76% <72.41%> (-2.36%)	:arrow_down:
crates/escalier_codegen/src/d_ts.rs	81.44% <65.51%> (-1.11%)	:arrow_down:
crates/escalier_hm/src/unify.rs	85.86% <81.35%> (-0.70%)	:arrow_down:
... and 6 more