[clang] [LifetimeSafety] Add report on misuse of clang::noescape (PR #177260)

[Utkarsh Saxena via cfe-commits]

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@@ -0,0 +1,172 @@
+// RUN: %clang_cc1 -fsyntax-only -flifetime-safety -flifetime-safety-inference -Wlifetime-safety-noescape -verify %s
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usx95 wrote:

nit: remove `-flifetime-safety`. This is on by default for now and will be deprecated/removed in subsequent releases.

https://github.com/llvm/llvm-project/pull/177260