llvm-project

fc4d8710 - Define -DLLVM_BUILD_TELEMETRY to be used in ifdef (#126746)

Define -DLLVM_BUILD_TELEMETRY to be used in ifdef (#126746) Background: Telemetry code isn't always built (controlled by this LLVM_BUILD_TELEMETRY cmake flag) This means users of the library may not have the library. So we're definding the `-DLLVM_BUILD_TELEMETRY` to be used in ifdef.