* coff-objfmt.c (coff_objfmt_output_expr): Change relocations output for

* coff-objfmt.c (coff_objfmt_output_expr): Change relocations output for
instructions in Win64 to always be REL32 regardless of whether they're
RIP relative or not.  I don't understand this behavior, but it matches how
ML64 generates relocs and unbreaks linking.  The handling of this case must
be handled at a higher level somehow (either at the linker or the compiler).
Note that this REL32 generation behavior of ML64 happens only with the
latest version (VC8); the 2003 SP1 SDK ML64 doesn't do this.

* bytecode.c (yasm_bc_is_data): New supporting function.
* bytecode.h (yasm_bc_is_data): Prototype.

Testcase pending.

Reported by and much debugging support contributed by:
  Brian Gladman <brg@gladman.plus.com>. Thanks!

svn path=/trunk/yasm/; revision=1251