Use lambdas for nesting edsc constructs.

Use lambdas for nesting edsc constructs.

    Using ArrayRef introduces issues with the order of evaluation between a constructor and
    the arguments of the subsequent calls to the `operator()`.
    As a consequence the order of captures is not well-defined can go wrong with certain compilers (e.g. gcc-6.4).
    This CL fixes the issue by using lambdas in lieu of ArrayRef.

--

PiperOrigin-RevId: 249114775