v2.15.0

Cthulhu v2.15.0

Diff since v2.14.0

Merged pull requests:

• enable dependabot for GitHub actions (#481) (@ranocha)
• adapt to julia nightly changes (#591) (@simeonschaub)
• Bump codecov/codecov-action from 1 to 4 (#592) (@dependabot[bot])
• Bump actions/cache from 1 to 4 (#593) (@dependabot[bot])
• Bump julia-actions/setup-julia from 1 to 2 (#594) (@dependabot[bot])
• Bump actions/checkout from 2 to 4 (#595) (@dependabot[bot])

Closed issues:

• Warning: couldn't retrieve source of function (#513)
• expected Core.Compiler.InferenceState, got a value of type Nothing (#549)
• ERROR: LoadError: Some tests did not pass: 320 passed, 1 failed, 0 errored, 1 broken. (#569)
• _dump_function_llvm errors when printing LLVM IR on nightly (#575)
• do_typeinf!(interp, mi) does not always put mi into cache (#586)
• Inference issue with CthulhuInterpreter vs NativeInterpreter (#590)