Demonstrate backtraces using the juliaojit

[gbaraldi]

A change like this together with JuliaLang/julia#49858 and JuliaLLVM/LLVM.jl#346 lets us get something like

julia> function foo(x)
       if x > 3
           error("eyy")
       else
           return x

       end
       end
foo (generic function with 1 method)

julia> Enzyme.autodiff(Forward, foo, Duplicated(3.5, 1.0))
ERROR: eyy
Stacktrace:
  [1] error
    @ ./error.jl:35
  [2] foo
    @ ./REPL[2]:3 [inlined]
  [3] foo
    @ ./REPL[2]:0 [inlined]
  [4] fwddiffejulia_foo_1563_inner_1wrap
    @ ./REPL[2]:0
  [5] macro expansion
    @ Enzyme.Compiler ~/.julia/dev/Enzyme/src/compiler.jl:9508 [inlined]
  [6] enzyme_call(::Val{false}, fptr::Ptr{Nothing}, ::Type{Enzyme.Compiler.ForwardModeThunk}, ::Type{Val{1}}, ::Val{false}, tt::Type{Tuple{Duplicated{Float64}}}, rt::Type{DuplicatedNoNeed{Float64}}, fn::Const{typeof(foo)}, ::Type{Nothing}, args::Duplicated{Float64})
    @ Enzyme.Compiler ~/.julia/dev/Enzyme/src/compiler.jl:9200 [inlined]
  [7] (::Enzyme.Compiler.ForwardModeThunk{Const{typeof(foo)}, DuplicatedNoNeed{Float64}, Tuple{Duplicated{Float64}}, Val{1}, Val{false}()})(fn::Const{typeof(foo)}, args::Duplicated{Float64})
    @ Enzyme.Compiler ~/.julia/dev/Enzyme/src/compiler.jl:9166 [inlined]
  [8] autodiff(::EnzymeCore.ForwardMode, f::Const{typeof(foo)}, ::Type{DuplicatedNoNeed{Float64}}, args::Duplicated{Float64})
    @ Enzyme ~/.julia/dev/Enzyme/src/Enzyme.jl:322 [inlined]
  [9] autodiff(mode::EnzymeCore.ForwardMode, f::Const{typeof(foo)}, args::Duplicated{Float64})
    @ Enzyme ~/.julia/dev/Enzyme/src/Enzyme.jl:228 [inlined]
 [10] autodiff(mode::EnzymeCore.ForwardMode, f::typeof(foo), args::Duplicated{Float64})
    @ Enzyme ~/.julia/dev/Enzyme/src/Enzyme.jl:214
 [11] top-level scope
    @ REPL[3]:1

[codecov-commenter]

Codecov Report

Patch coverage: 41.93% and no project coverage change.

Comparison is base (b4c6ec6) 76.95% compared to head (53b7566) 76.95%.

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Additional details and impacted files

@@           Coverage Diff           @@
##             main     #863   +/-   ##
=======================================
  Coverage   76.95%   76.95%           
=======================================
  Files          19       19           
  Lines        8496     8502    +6     
=======================================
+ Hits         6538     6543    +5     
- Misses       1958     1959    +1     

Impacted Files	Coverage Δ
src/compiler.jl	77.94% <0.00%> (ø)
src/compiler/orcv2.jl	68.14% <43.33%> (+0.70%)	⬆️

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[wsmoses]

@gbaraldi mind rebasing this now that the dependencies have landed?