* x86id.re: Unbreak movq for NASM parser. I accidentally overrode it when

* x86id.re: Unbreak movq for NASM parser.  I accidentally overrode it when
defining the mov forms for GAS.  While I'm here, fix movq so it also
supports the 64-bit move registers (per Intel's spec, AMD has it under movd)
and copy the MMX/SSE2 versions of movq into mov so they're visible to the
GAS parser (and only the GAS parser).

Add a whole bunch of testcases to test movd and movq in both 32 bit and 64
bit modes for both GAS and NASM parsers.

svn path=/trunk/yasm/; revision=1255