* mips-tdep.c (mips_pseudo_register_read)

* mips-tdep.c (mips_pseudo_register_read)
(mips_pseudo_register_write): Change type of last argument to
`gdb_byte *'.
(mips_register_to_value, mips_value_to_register): Change type of
last argument to `gdb_byte *'.  Remove casts that are no longer
needed.
(mips_fetch_instruction, fetch_mips_16): Use gdb_byte for buf.
(mips_eabi_push_dummy_call, mips_n32n64_push_dummy_call)
(mips_o32_push_dummy_call, mips_o32_return_value): Use `const
gdb_byte *' for val and gdb_byte for valbuf.  Remove casts that
are no longer needed.
(mips_eabi_return_value, mips_n32n64_return_value)
(mips_o32_return_value, mips_o64_return_value): Change type of
readbuf and writebuf arguments to `gdb_byte *'.
(mips_read_fp_register_single): Change type of last argument to
`gdb_byte *'.  Use `gdb_byte *' for raw_buffer.
(mips_read_fp_register_double): Change type of last argument to
`gdb_byte *'.
(mips_print_fp_register): Use `gdb_byte *' for raw_buffer.  Remove
casts that are no longer needed.
(mips_print_register, print_gp_register_row): Use gdb_byte for
raw_buffer.  Remove casts that are no longer needed.
(mips_single_step_through_delay): Use gdb_byte for buf.
(mips_breakpoint_from_pc): Change return type to `const gdb_byte
*'.  Use gdb_byte for mips16_big_breakpoint, big_breakpoint,
pmon_big_breakpoint, idt_big_breakpoint, mips16_little_breakpoint,
little_breakpoint, pmon_little_breakpoint and
idt_little_breakpoint.
(mips_integer_to_address): Use `gdb_byte *' for tmp.