cl: rm logical.go; mthdCheck => matcher; ctx.methodCheck: use match; tool test: TestPyhton fix

[xushiwei]

• Proposal: make MethodCheck bind only to existing types, with a verified receiver layout #955

[codecov]

Codecov Report

❌ Patch coverage is 88.88889% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 88.03%. Comparing base (a22ed14) to head (6066b93).

Files with missing lines	Patch %	Lines
cl/name.go	87.50%	3 Missing ⚠️
cl/func.go	90.90%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #956      +/-   ##
==========================================
+ Coverage   87.99%   88.03%   +0.03%     
==========================================
  Files          23       22       -1     
  Lines        2666     2640      -26     
==========================================
- Hits         2346     2324      -22     
+ Misses        320      316       -4     

Flag	Coverage Δ
llgo-tests	88.03% <88.88%> (+0.03%)	⬆️

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