* cp-tree.h (check_return_expr): New function.
	* decl.c (finish_constructor_body): New function.
	(pushdecl): Put global friend functions in namespace binding
	level, not the class binding level.
	(finish_destructor_body): Make sure the dtor_label is always
	defined.  Fix typo in comment.
	(finish_function): Move generation of constructor-termination code
	to semantic-analysis time.  Move generation of implicit `main'
	return value to semantic-analysis time.
	* semantics.c (finish_return_stmt): Generate goto's to
	ctor_label/dtor_label here.  Use check_return_expr to do semantic
	analysis on the returned expression.
	* typeck.c (maybe_warn_about_returning_address_of_local): New
	function split out from c_expand_return.
	(check_return_expr): Likewise.
	(c_expand_return): Just generate the RTL for the return.

From-SVN: r29663