(not vice versa) for efficiency (required adding the Ex functionality
to drivers).

through the result of the previous stage.

By default the FinalCombiner is setup to add the specular color to the
final result of the combiner operations. However, it should only do
this when the WINED3DRS_SPECULARENABLE renderstate is enabled.

Most dlls use libwine_unicode at this point, so there's nothing to
gain by having two separate libraries.

- Implement call, callnz, label, and ret
- Implement support for NOT modifier

- Implement if, else, endif, rep, endrep, break
- Implement ifc, breakc, using undocumented comparison bits in the instruction token
- Fix bug in main loop processing of codes with no dst token
- Fix bug in GLSL output modifier processing of codes with no dst token
- Fix bug in loop implementation (src1 contains the integer data, src0 is aL)
- Add versioning for all the instructions above, and remove
  GLSL_REQUIRED thing, which is useless and should be removed from all
  opcodes in general.

- move DEF, DEFI, DEFB handling into the register counting pass
- keep track of defined constants as a linked list (because there's a
  few of them)
- apply immediate constants after global constants in the constant
  loading function
- both types of constants now get loaded with array notation in the
  shader (into the same array)