* coffgen.c (string_size): Remove static variable.

	* coffgen.c (string_size): Remove static variable.
	(debug_string_size, debug_string_section): Likewise.
	(coff_fix_symbol_name): Add string_size_p, debug_string_section_p,
	and debug_string_size_p parameters.  Use them instead of the
	global variables.  Change all callers.
	(coff_write_symbol): Likewise.
	(coff_write_alien_symbol, coff_write_native_symbol): Likewise.
	(coff_write_symbols): Add local variables to replace removed
	global variables.