[clang] [analyzer] Improve UseAfterLifetimeEnd checker's diagnostic with descriptive names and value tracking (PR #212158)

[via cfe-commits]

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@@ -77,12 +86,12 @@ void caller_six() {
   int odd = 55;
   int &s = fn(even, odd);
 
-  clang_analyzer_dumpLifetimeOriginsOf(s); // expected-warning {{Origin &odd bound to odd}}
+  clang_analyzer_dumpLifetimeOriginsOf(s);
+  // expected-warning at -1 {{Origin &odd bound to odd}}
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isuckatcs wrote:

Nit: don't we want the `'...'`  around the region? E.g.: `Origin '&odd' bound to 'odd'`.

https://github.com/llvm/llvm-project/pull/212158