re PR c++/63885 (ICE in static assert of constexpr forwarding xvalue container member rvalue reference)
PR c++/63885
* constexpr.c (cxx_eval_constant_expression) [PARM_DECL]: Don't
complain yet about a reference.
[TARGET_EXPR]: Handle TARGET_EXPR with addr == true.
[ADDR_EXPR]: Make sure we don't take the address of a CONSTRUCTOR.
(cxx_bind_parameters_in_call): In the new scheme addr is always false.
* typeck.c (build_address): Don't take the address of a CONSTRUCTOR.
From-SVN: r217815
