[clang] [clang] Extend lifetime analysis to support assignments for pointer-like objects. (PR #99032)

[Haojian Wu via cfe-commits]

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@@ -34,6 +34,6 @@ struct basic_string {
 };
 }  // namespace std
 void test(const char* a) {
-  // verify we're emitting the `-Wdangling-assignment` warning.
+  // verify we're emitting the `-Wdangling-assignment-gsl` warning.
   a = std::basic_string().c_str(); // expected-warning {{object backing the pointer a will be destroyed at the end of the full-expression}}
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hokein wrote:

The warning is triggered by the implicit `gsl::Owner` attribute on `std::basic_string`. Without this attribute, the warning would not be issued.

https://github.com/llvm/llvm-project/pull/99032