LLVM/Nvidia GPU backend: LLVM 17 broke everything

[mratsim]

Seems like LLVM-17 renamed yet again their compilation pass manager ...

[mratsim]

See:

• https://releases.llvm.org/17.0.1/docs/ReleaseNotes.html#id25
• https://reviews.llvm.org/D145043
• Remove legacy PM leftovers rust-lang/rust#108599

[mratsim]

And some more complete deletion:

• The PasseManagerBuilderRef
• https://github.com/llvm/llvm-project/blob/release/17.x/llvm/docs/ReleaseNotes.rst#changes-to-the-c-api
• Legacy passes removed in LLVM17 tinygo-org/tinygo#3892
• all: use the new LLVM pass manager tinygo-org/tinygo#3918
• https://reviews.llvm.org/D145387
• https://reviews.llvm.org/D145835