* cppfiles.c (NEVER_REREAD, DO_NOT_REREAD): Move from cpphash.h.
* cpphash.h (NEVER_REREAD, DO_NOT_REREAD, ABSOLUTE_PATH): Delete.
* cpplex.c (parse_identifier): Improve diagnostic.
(_cpp_lex_token): Return unconditionally at the end of a directive.
* cpplib.c (read_flag): Verify legality of each flag.
(end_directive): Resotre pfile->skipping before skip_rest_of_line.
(do_line): Use the new read_flag.
* cppmacro.c (struct cpp_macro, parse_arg, replace_args,
check_macro_redefinition, parse_params): Rename var_args to
variadic.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38150 138bc75d-0d04-0410-961f-82ee72b054a4