[clang] Emit -Wdangling diagnoses for cases where a gsl-pointer is construct from a gsl-owner object in a container. (#104556)

The warning is not emitted for the case `string_view c =
std::vector<std::string>({""}).at(0);` because we bail out during the
visit of the LHS at [this
point](https://github.com/llvm/llvm-project/blob/5d2c324fea2d7cf86ec50e4bb6b680acf89b2ed5/clang/lib/Sema/CheckExprLifetime.cpp#L341-L343)
in the code.

This bailout was introduced in [this
commit](https://github.com/llvm/llvm-project/commit/bcd0798c47ca865f95226859893016a17402441e)
to address a false positive with
`vector<vector::iterator>({""}).at(0);`. This PR refines that fix by
ensuring that, for initialization involving a gsl-pointer, we only
consider constructor calls that take the gsl-owner object.

Fixes #100384.

GitOrigin-RevId: a918fa117acfbb20d29039cb8bddab159a8173dc