* mips-tdep.c (mips_fetch_instruction, mips16_fetch_instruction)

* mips-tdep.c (mips_fetch_instruction, mips16_fetch_instruction)
(mips_mdebug_frame_cache, mips16_scan_prologue)
(mips32_scan_prologue, mips_stub_frame_cache)
(heuristic_proc_start, heuristic_proc_desc)
(mips_eabi_push_dummy_call, mips_n32n64_push_dummy_call)
(mips_n32n64_return_value, mips_o32_push_dummy_call)
(mips_o32_return_value, mips_o64_push_dummy_call)
(mips_step_skips_delay, mips_skip_trampoline_code)
(mips_gdbarch_init): Use MIPS_A0_REGNUM instead of A0_REGNUM,
MIPS_RA_REGNUM instead of RA_REGNUM, MIPS_T9_REGNUM instead of
T9_REGNUM, MIPS_V0_REGNUM instead of V0_REGNUM, MIPS_ZERO_REGNUM
instead of ZERO_REGNUM, MIPS32_SIZE_INSN instead of MIPS_INSTLEN
and MIPS16_INSN_SIZE instead of MIPS16_INSTLEN.
(mips_dump_tdep): Don't print A0_REGNUM, RA_REGNUM,
T9_REGNUM, V0_REGNUM, ZERO_REGNUM, MIPS_INSTLEN and
MIPS16_INSTLEN.  Use MIPS_A0_REGNUM instead of A0_REGNUM.
* mips-linux-tdep.c (mips_linux_o32_sigframe_init)
(mips_linux_n32n64_sigframe_init): Use MIPS_ZERO_REGNUM instead of
ZERO_REGNUM.
* mipsnbsd-tdep.c (mipsnbsd_cannot_fetch_register)
(mipsnbsd_cannot_store_register): Use MIPS_ZERO_REGNUM instead of
ZERO_REGNUM.
(mipsnbsd_get_longjmp_target): Use MIPS_A0_REGNUM instead of
A0_REGNUM.
* mipsnbsd-nat.c: Include "mips-tdep.h".
(getregs_supplies): Use MIPS_ZERO_REGNUM instead of ZERO_REGNUM.
* Makefile.in (mipsnbsd-nat.o): Update dependencies.