lldb/test/API/commands/expression/import-std-module/weak_ptr-dbg-info-content/main.cpp

#include <memory>

struct Foo {
  int a;
};

int main(int argc, char **argv) {
  std::shared_ptr<Foo> s(new Foo);
  s->a = 3;
  std::weak_ptr<Foo> w = s;
  return s->a; // Set break point at this line.
}