JuliaGPU/GPUCompiler.jl: v0.19.0

Diff since v0.18.0

Closed issues:

• CPU execution (#3)
• irgen nondeterminism on Julia 1.5 (#41)
• Don't write compiled runtimes in the compilecache (#378)
• LLVM upgrade broke NVVMReflect pass (#410)

Merged pull requests:

• Adapt handling of world ages to upstream changes (#403) (@maleadt)
• Write the compiled runtime in a scratch directory. (#406) (@maleadt)
• CompatHelper: add new compat entry for "Scratch" at version "1" (#407) (@github-actions[bot])
• Metal: Set the SDK Version metadata. (#408) (@maleadt)
• Allow reverse testing failure if installation failed. (#409) (@maleadt)
• Adapt NVVMReflect pass to LLVM.jl changes. (#411) (@maleadt)
• Updates for LLVM.jl 5. (#416) (@maleadt)
• Replace FunctionSpec with methodinstance (#417) (@maleadt)
• Make it possible for downstream packages to use the compile entrypoint (#418) (@maleadt)
• Strip stack protector function attribute. (#419) (@maleadt)