No functional changes intended. The LLVM commit 89b57061f7 moved TargetRegistry.(h|cpp) from Support to MC. This adapts RustWrapper accordingly.
89b57061f7
THis came up in the review of #83425: it's hard to imagine a use of LLVM_VERSION_LE() or LLVM_VERSION_EQ() that's not asking for trouble when a point release gets created, so let's just discard them to prevent the issue.
rustllvm
rustc_llvm