typeck.c (require_complete_type): Use complete_type_or_else.
* typeck.c (require_complete_type): Use complete_type_or_else.
(complete_type_or_else): Always return NULL_TREE on failure, as
documented.
* pt.c (tsubst_aggr_type): Prototype.
(tsubst_decl): New function, split out from tsubst. Set
input_filename and lineno as appropriate.
(pop_tinst_level): Restore the file and line number saved in
push_tinst_level.
(instantiate_class_template): Set input_filename and lineno as
appropriate.
(tsubst): Move _DECL processing to tsubst_decl. Make sure the
context for a TYPENAME_TYPE is complete.
* decl2.c (grokbitfield): Issue errors on bitfields declared with
function type.
(do_dtors): As in do_ctors, pretend to be a member of the same
class as a static data member while generating a call to its
destructor.