Change minimal_symbol_reader::record_full to take a bool

Change minimal_symbol_reader::record_full to take a bool

This changes an "int" to a "bool" in the signature for
minimal_symbol_reader::record_full, and then fixes the callers.

2016-10-21  Tom Tromey  <tom@tromey.com>

	* minsyms.h (minimal_symbol_reader::record_full): "copy_name" now
	a bool.
	(record, record_with_info): Update.
	* minsyms.c (record): Fix indentation.
	(record_full): Fix indentation.  Update for type change.
	* elfread.c (record_minimal_symbol): "copy_name" now a bool.
	(elf_symtab_read): "copy_names" now a bool.
	(elf_rel_plt_read, elf_read_minimal_symbols): Update.