Adjust to method table changes

[serenity4]

fT.name.mt.name was replaced by fT.name.singletonname in JuliaLang/julia#58131, which caused a breakage.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 0.00%. Comparing base (2c33b9a) to head (b065c1b).
Report is 62 commits behind head on master.

Files with missing lines	Patch %	Lines
src/backedges.jl	0.00%	2 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff           @@
##           master    #645   +/-   ##
======================================
  Coverage    0.00%   0.00%           
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  Files           9      11    +2     
  Lines        1556    1593   +37     
======================================
- Misses       1556    1593   +37     

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[serenity4]

Seems like TypedSyntax is also broken through MethodAnalysis.jl. For this one though, the fix isn't as obvious because it used to access the method table from MethodList, and AFAIU it's no longer possible to do so.

[aviatesk]

it used to access the method table from MethodList, and AFAIU it's no longer possible to do so.

So it seems that we need to change the fundamental implementation strategy of MethodAnalysis?

[serenity4]

From what I understand, the method table was accessed for its backedges, and now these must be retrieved by other means. We now have them available via ((ml::MethodList).tn::Core.TypeName).backedges. I am working on a PR to update MethodAnalysis.

[serenity4]

This should fix it: timholy/MethodAnalysis.jl#52

[serenity4]

I don't see any downsides in merging this now, so we can have it part of the manual release. Hopefully the MethodAnalysis PR will get merged in a reasonable time frame so the TypedSyntax tests don't remain broken for too long.