[clang] [LifetimeSafety] Suggest lifetime annotations (PR #169767)

[Utkarsh Saxena via cfe-commits]

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@@ -132,6 +153,13 @@ class LifetimeChecker {
         llvm_unreachable("Unhandled CausingFact type");
     }
   }
+
+  void issueAnnotationWarnings() {
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usx95 wrote:

nit: rename to `suggestAnnotations`​

https://github.com/llvm/llvm-project/pull/169767