trans.c (Identifier_to_gnu): Test Is_Elementary_Type instead of Is_Scalar_Type for a constant with an...

	* gcc-interface/trans.c (Identifier_to_gnu): Test Is_Elementary_Type
	instead of Is_Scalar_Type for a constant with an address clause.
	Do not return the underlying constant for a constant used by reference
	if it holds the address of a constant and an lvalue is required.

From-SVN: r188380