More fixes for invalid memory accesses exposed by fuzzed binaries.

More fixes for invalid memory accesses exposed by fuzzed binaries.

	PR binutils/17531
	* dwarf.c (decode_location_expression): Check for an out of range
	value for a DW_OP_GNU_entry_value expression.
	(display_debug_lines_raw): Check for a partial
	.debug_line. section being encountered without a prior, full
	.debug.line section.
	(display_debug_lines_decoded): Likewise.  Also check for
	li_line_range being zero.
	(display_debug_pubnames_worker): Check for an invalid pn_length
	field.
	(read_cie): Add range checks.
	* elfcomm.c (setup_archive): Check for a negative longnames_size.