[clang] [llvm] [OptBisect][IR] Adding a new OptPassGate for disabling passes via name (PR #145059)

[Mircea Trofin via cfe-commits]

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+// REQUIRES: x86-registered-target
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mtrofin wrote:

should the test be in llvm/test? it's not tied to clang

https://github.com/llvm/llvm-project/pull/145059