fix Cthulhu on nightly and bring tests closer to passing

[oscardssmith]

Tests on nightly are still failing, but it loads and works (and the tests touched now work).

authored by claude

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 62 lines in your changes missing coverage. Please review.
✅ Project coverage is 0.00%. Comparing base (2c33b9a) to head (88a691d).
⚠️ Report is 99 commits behind head on master.

Files with missing lines	Patch %	Lines
src/compiler/reflection.jl	0.00%	47 Missing ⚠️
src/compiler/interpreter.jl	0.00%	8 Missing ⚠️
src/compiler/codeview.jl	0.00%	4 Missing ⚠️
src/compiler/interface.jl	0.00%	2 Missing ⚠️
src/CthulhuCompiler.jl	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #705    +/-   ##
=======================================
  Coverage    0.00%   0.00%            
=======================================
  Files           9      22    +13     
  Lines        1556    1850   +294     
=======================================
- Misses       1556    1850   +294     

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[wheeheee]

Precompilation fails on master now (same for #685)

Precompiling project...
ERROR: UndefVarError: `getdebugidx` not defined in `Base.Compiler.IRShow`
Suggestion: check for spelling errors or missing imports.
Stacktrace:
  [1] getproperty(x::Module, f::Symbol)
    @ Base Base_compiler.jl:51 [inlined]
  [2] getline(lt::Core.DebugInfo, i::Int64)
    @ TypedSyntax ~/.julia/packages/Cthulhu/OE0Wm/TypedSyntax/src/node.jl:436
  [3] (::TypedSyntax.var"#append_targets_for_line!#map_ssas_to_source##2"{Core.CodeInfo, Int64})(mapped::Vector{Union{JuliaSyntax.TreeNode{TypedSyntax.TypedSyntaxData}, JuliaSyntax.SyntaxNode}}, i::Int64, targets::Vector{JuliaSyntax.SyntaxNode})
    @ TypedSyntax ~/.julia/packages/Cthulhu/OE0Wm/TypedSyntax/src/node.jl:515
  [4] (::TypedSyntax.var"#append_targets_for_arg!#map_ssas_to_source##3"{TypedSyntax.var"#append_targets_for_line!#map_ssas_to_source##2"{Core.CodeInfo, Int64}})(mapped::Vector{Union{JuliaSyntax.TreeNode{TypedSyntax.TypedSyntaxData}, JuliaSyntax.SyntaxNode}}, i::Int64, arg::Any)
    @ TypedSyntax ~/.julia/packages/Cthulhu/OE0Wm/TypedSyntax/src/node.jl:527
  [5] map_ssas_to_source(src::Core.CodeInfo, mi::Core.MethodInstance, rootnode::JuliaSyntax.SyntaxNode, Δline::Int64)
    @ TypedSyntax ~/.julia/packages/Cthulhu/OE0Wm/TypedSyntax/src/node.jl:589
  [6] map_ssas_to_source(src::Core.CodeInfo, mi::Core.MethodInstance, rootnode::JuliaSyntax.SyntaxNode, Δline::Int32)
    @ TypedSyntax ~/.julia/packages/Cthulhu/OE0Wm/TypedSyntax/src/node.jl:823 [inlined]
  [7] tsn_and_mappings(mi::Core.MethodInstance, src::Core.CodeInfo, rt::Any, sourcetext::SubString{String}, lineno::Int32; warn::Bool, strip_macros::Bool, kwargs::@Kwargs{})
    @ TypedSyntax ~/.julia/packages/Cthulhu/OE0Wm/TypedSyntax/src/node.jl:50
  [8] tsn_and_mappings(mi::Core.MethodInstance, src::Core.CodeInfo, rt::Any; warn::Bool, strip_macros::Bool, kwargs::@Kwargs{})
    @ TypedSyntax ~/.julia/packages/Cthulhu/OE0Wm/TypedSyntax/src/node.jl:35
  [9] top-level scope
    @ ~/.julia/packages/Cthulhu/OE0Wm/src/compiler/reflection.jl:351
 [10] top-level scope
    @ ~/.julia/packages/Cthulhu/OE0Wm/src/compiler/reflection.jl:350
...