cpperror.c (cpp_error): Default to directive_line within directives here.

cpperror.c (cpp_error): Default to directive_line within directives here.

	* cpperror.c (cpp_error): Default to directive_line within
	directives here.
	* cppexp.c (cpp_interpret_integer): Only use traditional
	number semantics in directives.
	* cpplib.c (prepare_directive_trad): Don't reset pfile->line.
	(do_include_common): Similarly.
	* cpptrad.c (scan_out_logical_line): Implement accurate
	quoting of <> in #include.
	* doc/cpp.texi: Update.

From-SVN: r55347