[Patch]: gas: create struct symbol_flags

[nick clifton]

Hi Tristan,

> gas/
> 2011-12-23  Tristan Gingold<gingold@adacore.com>
>
> 	* struc-symbol.h (struct symbol_flags): New struct, created from...
> 	(struct symbol): ... this one.  Add sy_flags field, remove flag
> 	fields.
> 	(struct local_symbol): Replace lsy_marker field by lsy_flags.
> 	Adjust comment.
> 	(local_symbol_resolved_p): Adjust.
> 	(local_symbol_mark_resolved): Likewise.
> 	* symbols.c (LOCAL_SYMBOL_CHECK): Adjust.
> 	(local_symbol_make, local_symbol_convert, colon)
> 	(symbol_clone_if_forward_ref, verify_symbol_chain)
> 	(resolve_symbol_value, snapshot_symbol, S_GET_VALUE)
> 	(S_IS_WEAKREFR, S_IS_WEAKREFD, S_IS_VOLATILE, S_IS_FORWARD_REF)
> 	(S_SET_WEAKREFR, S_CLEAR_WEAKREFR, S_SET_WEAKREFD)
> 	(S_CLEAR_WEAKREFD, S_SET_VOLATILE, S_CLEAR_VOLATILE)
> 	(S_SET_FORWARD_REF, symbol_same_p, symbol_mark_used)
> 	(symbol_clear_used, symbol_used_p, symbol_mark_used_in_reloc)
> 	(symbol_clear_used_in_reloc, symbol_used_in_reloc_p)
> 	(symbol_mark_mri_common, symbol_clear_mri_common)
> 	(symbol_mri_common_p, symbol_mark_written, symbol_clear_written)
> 	(symbol_written_p, symbol_mark_resolved, symbol_resolved_p)
> 	(symbol_equated_reloc_p, dot_symbol_init)
> 	(print_symbol_value_1): Adjust.

Approved - please apply.

Cheers
   Nick