[clang] [llvm] wip: Move instrumentation passes (PR #92171)

[Arthur Eubanks via cfe-commits]

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@@ -0,0 +1,44 @@
+; RUN: opt -passes="default<O0>" -S < %s | FileCheck -check-prefix=PRELTO %s
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aeubanks wrote:

`PRELTO` isn't quite accurate since we also instrument in the default pipelines, I'd use `INSTRUMENT`/`NOINSTRUMENT` or even just `YES`/`NO` :)

https://github.com/llvm/llvm-project/pull/92171