Various cleanups:
- do not use DWORD as a bitmask, that places artificial limit of 32 on
  registers
- track attributes that are used and declare only those
- move declarations function call in pshader/vshader to allow us to
  insert pixel or vertex specific code between the declarations and
  the rest of the code
- remove redundant 0 intializers
- remove useless continue statement

Now that the declaration function is out of the way, the tracing pass,
which is very long and 100% the same can be shared between pixel and
vertex shaders.

The new function is called shader_trace_init(), and is responsible for:
- tracing the shader
- initializing the function length
- setting the shader version [needed very early]

The new function is called in pass 2 (getister counting/maps), and
it's now in baseshader. It operates on all INPUT and OUTPUT registers,
which, in addition to the old vertex shader input declarations covers
Shader Model 3.0 vshader output and pshader input declarations. The
result is stored into the reg_map structure.

Delete the entire namedArrays code path and all its dependencies (one
of which is quite long - storeOrder in drawprim is always FALSE, for
example). Delete declaredArrays, and make its code path the default.

The source is largely irrelevant since we are not likely to be wanting
to ship updates to the MIME database as registry updates, instead of
just changing the code.

usually a good indicator of a bug elsewhere in Wine.

Mark todo a test that depended on the bug to succeed.

- Cleanup GetSrcAndOpFromValue().
- Use naming more consistent with the rest of the file.

msxml3: Initialise output interface pointers to NULL in xmlnodelist_QueryInterface and xmlnodelist_nextNode.