Adapt to nightly linetable changes#122
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`Core.Compiler.LineInfoNode` was removed in JuliaLang/julia#52415 but kept in `Core` for serializer compatibility reasons (see https://github.com/JuliaLang/julia/blob/e07c0f1ddbfc89ad1ac4dda7246d8ed5d0d57c19/base/boot.jl#L491). Linetable representation in Julia IR has been changed to be more compact. This commit updates IRTools to decode and generate valid debug information according to these changes. Adaptation for IRTools is relatively straightforward in the sense that IRTools operates on untyped IR which does not contains inline statements. However, IRTools contains an inlining pass but it did not account for linetable information previously. In this change, I have made the choice to use the same line for all inlined statements. This can be further improved in the future.
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Core.Compiler.LineInfoNodewas removed in JuliaLang/julia#52415 but kept inCorefor serializer compatibility reasons (see https://github.com/JuliaLang/julia/blob/e07c0f1ddbfc89ad1ac4dda7246d8ed5d0d57c19/base/boot.jl#L491).Adaptation for IRTools is relatively straightforward in the sense that IRTools operates on untyped IR which does not contains inlined statements.
However, IRTools contains an inlining pass but it did not account for linetable information previously. In this change, I have made the choice to use the source line for all inlined statements. This can be further improved in the future by supporting stacked debuginfos.
Note
The second commit (cc97588) moves the definition of
LineInfoNodeinsideIRToolsto prevent future breaking changes. But this can create a breakage for people usingIR(lines::Vector{LineInfoNode})constructor so we may not want to include it yet or add conversions.Closes #121