Hello,

This patch eliminates mips_register_raw_size.  The 
mips64_transfers_32bit_regs_p code is instead handled by 
mips_register_type.  Note that this means that when "mips64 transfers 
32bit regs", GDB now displays 32-bit regs.  Previously it was (I 
suspect) displaying 64-bit regs even though only half of each reg was valid.

committed,
Andrew