* decContext.c (decContextSetStatusFromString): Constify.
	* decContext.h (decContextSetStatusFromString): Likewise.
	* decNumber.c (decNumberFromString): Likewise.
	* decNumber.h (decNumberFromString): Likewise.
	* decimal128.c (decimal128FromString): Likewise.
	* decimal128.h (decimal128FromString): Likewise.
	* decimal32.c (decimal32FromString): Likewise.
	* decimal32.h (decimal32FromString): Likewise.
	* decimal64.c (decimal64FromString): Likewise.
	* decimal64.h (decimal64FromString): Likewise.

From-SVN: r116296