* xcoffread.c (scan_xcoff_symtab): Update.

	* xcoffread.c (scan_xcoff_symtab): Update.
	* symfile.h (add_psymbol_to_list): Update prototype.
	* symfile.c (add_psymbol_to_bcache): Add copy_name argument.
	(add_psymbol_to_list): Likewise.
	* stabsread.c (define_symbol): Update.
	* mdebugread.c (parse_partial_symbols): Update.
	(handle_psymbol_enumerators): Update.
	(new_symbol): Update.
	* dbxread.c (read_dbx_symtab): Update.
	* coffread.c (process_coff_symbol): Update.
	* symtab.h (prim_record_minimal_symbol_full): Declare.
	(SYMBOL_SET_NAMES): Add copy_name argument.
	* symtab.c (struct demangled_name_entry): New struct.
	(hash_demangled_name_entry): New function.
	(eq_demangled_name_entry): Likewise.
	(create_demangled_names_hash): Use new functions.
	(symbol_set_names): Use struct demangled_name_entry.  Add
	copy_name argument.
	* minsyms.c (prim_record_minimal_symbol_full): New function.
	(prim_record_minimal_symbol_and_info): Use it.
	* elfread.c (record_minimal_symbol): Add name_len and copy_name
	arguments.  Call prim_record_minimal_symbol_full.
	(elf_symtab_read): Add copy_names argument.
	(elf_symfile_read): Update calls to elf_symtab_read.
	* dwarf2read.c (add_partial_symbol): Don't copy symbol names.
	(load_partial_dies): Likewise.
	(new_symbol): Likewise.
	* cp-namespace.c (check_one_possible_namespace_symbol): Don't save
	name on the obstack.  Update call to SYMBOL_SET_NAMES.