Add tests for #100549

Author: hokein

clang/test/Sema/warn-lifetime-analysis-nocfg.cpp

@@ -508,5 +508,20 @@ FooView test3(int i, std::optional<Foo> a) {
     return *a; // expected-warning {{address of stack memory}}
   return a.value(); // expected-warning {{address of stack memory}}
 }
+} // namespace GH93386
 
+namespace GH100549 {
+struct UrlAnalyzed {
+  UrlAnalyzed(std::string_view url [[clang::lifetimebound]]);
+};
+std::string StrCat(std::string_view, std::string_view);
+void test1() {
+  UrlAnalyzed url(StrCat("abc", "bcd")); // expected-warning {{object backing the pointer will be destroyed}}
+}
+
+std::string_view ReturnStringView(std::string_view abc [[clang::lifetimebound]]);
+
+void test() {
+  std::string_view svjkk1 = ReturnStringView(StrCat("bar", "x")); // expected-warning {{object backing the pointer will be destroyed at the end of the full-expression}}
 }
+} // namespace GH100549