ChangeLog entry:
2017-01-06  Ivo Raisr  <ivo.raisr@oracle.com>

	Split real and pseudo registers in preparation for registers provided
	by a target. Registers provided by target description can have more real
	registers and pseudo registers need to be positioned after them.
	* sparc-tdep.h: Separate real and pseudo registers.
	* sparc64-tdep.h: Separate real and pseudo registers.
	* sparc-tdep.c (sparc32_pseudo_register_name): New function returning
	pseudo register names on sparc 32-bit.
	(sparc32_register_name): Use sparc32_pseudo_register_name().
	(sparc32_pseudo_register_type): New function returning pseudo register
	types on sparc 32-bit.
	(sparc32_register_type): Use sparc32_pseudo_register_type().
	(sparc32_pseudo_register_read, sparc32_pseudo_register_write): Pseudo
	registers may have different numbers.
	(sparc32_gdbarch_init): Initialize properly sparc 32-bit register names.
	* sparc64-tdep.c (sparc64_pseudo_register_name): New function returning
	pseudo register names on sparc 64-bit.
	(sparc64_register_name): Use sparc64_pseudo_register_name().
	(sparc64_pseudo_register_type): New function returning pseudo register
	types on sparc 64-bit.
	(sparc64_register_type): Use sparc64_pseudo_register_type().
	(sparc64_pseudo_register_read, sparc64_pseudo_register_write): Pseudo
	registers may have different numbers.
	(sparc64_store_floating_fields, sparc64_extract_floating_fields,
	sparc64_store_arguments): Pseudo registers may have different numbers;
	deal with it.
	(sparc64_init_abi): Initialize properly sparc 64-bit register names.