re PR c++/11788 (missing implicit instantiation of static member function)
cp:
PR c++/11788
* typeck.c (build_address): If it is a function, mark it used.
(build_unary_op): Do not lose object's side-effects when taking
address of static member function.
* class.c (resolve_address_of_overloaded_function): Use
tsubst_flags_t parameter. Only expect overload sets. Adjust.
(instantiate_type): Adjust flags passing. Do not lose object's
side-effects when taking address of static member function.
testsuite:
PR c++/11788
* g++.dg/overload/addr1.C: New test.
From-SVN: r71304