[llvm] [llvm]Add a simple Telemetry framework (PR #102323)

[James Henderson via llvm-commits]

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@@ -0,0 +1,133 @@
+//===- llvm/Telemetry/Telemetry.h - Telemetry -------------------*- C++ -*-===//
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jh7370 wrote:

Nit: coding standards have very recently changed such that the `C++` bit of this line is no longer needed.

https://github.com/llvm/llvm-project/pull/102323