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

[Utkarsh Saxena via cfe-commits]

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@@ -10778,6 +10778,13 @@ def note_lifetime_safety_used_here : Note<"later used here">;
 def note_lifetime_safety_destroyed_here : Note<"destroyed here">;
 def note_lifetime_safety_returned_here : Note<"returned here">;
 
+def warn_lifetime_param_should_be_lifetimebound
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usx95 wrote:

Let's follow the same naming of including lifetime_safety in the warning name.

Suggestion: warn_lifetime_safety_suggest_lifetimebound  
also let's stick with return and be explicit how it escapes. Lifetimebound can be used to denot escape by return only.

def note_lifetime_safety_suggestion_returned_here : Note<"param returned here">;

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