* corefile.c (core_init): Use a separate local variable,

	* corefile.c (core_init): Use a separate local variable,
	core_sym_bytes, to make the units from bfd_get_symtab_upper_bound
	more obvious.
	(core_create_function_syms): Discard cbfd argument.  Eliminate
	`offset' variable and calculate VMA directly. Update all users.
	* corefile.h (core_create_function_syms): Update prototype.
	(core_create_line_syms): Likewise.
	* gprof.c (main): Remove #ifdef PROF_SUPPORT_IMPLEMENTED code.
	Tidy.