* expr.c (cplus_expand_expr): Preserve temporaries when expanding
	STMT_EXPRs.
	* optimize.c (struct inline_data): Add target_exprs field.
	(declare_return_variable): When a function returns an aggregate,
	use the variable declared in the TARGET_EXPR as the remapped
	DECL_RESULT.
	(expand_call_inline): Update the pending target_exprs stack.
	(optimize_function): Initialize the stack.

From-SVN: r33561