(OBJC_VERSION): Increment version as recent changes have made old

(OBJC_VERSION): Increment version as recent changes have made old
compiled code incompatible with current ObjC runtime.
(build_objc_symtab_template): Make sure defs in objc_symtab is a NULL
terminated array.
(init_def_list): Attach statics to end of def list.
(init_objc_symtab): Take statics list into account.
(init_module_descriptor, build_module_descriptor): Don't add statics.
(generate_static_references): Indicate that statics are used.
(finish_objc): Process statics in the beginning.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@13708 138bc75d-0d04-0410-961f-82ee72b054a4