expr.c (expand_expr, [...]): Update alignment of DECL_RTL after re-laying out decl in incomplete case.

	* expr.c (expand_expr, case VAR_DECL): Update alignment of DECL_RTL
	after re-laying out decl in incomplete case.
	(expand_expr, case ADDR_EXPR): Fix typo in copy case.

From-SVN: r47153