decl.c (vinfo_t): New type and associated vector.

decl.c (vinfo_t): New type and associated vector.

	* gcc-interface/decl.c (vinfo_t): New type and associated vector.
	(components_to_record): Change return type to bool.
	Lay out the variants in two passes.  Do not force a specific layout for
	the variant part if the variants do not have a representation clause.
	Take the alignment of the variant part into account when laying out
	variants without rep clause in a record type with a partial rep clause.
	(create_rep_part): Do not set the position of the field.

From-SVN: r199342