[WINED3D 3/3] Added some GLSL definitions and function protoypes to wined3d_gl.h

[H. Verbeet]

>+typedef GLhandleARB (APIENTRY * PFNGLCREATESHADEROBJECTARBPROC)
(GLenum shaderType);
>+typedef void (APIENTRY * PFNGLSHADERSOURCEARBPROC) (GLhandleARB
shaderObj, GLsizei count, const GLcharARB* *string, const GLint
*length);
>+typedef void (APIENTRY * PFNGLCOMPILESHADERARBPROC) (GLhandleARB shaderObj);
etc...

Those should be called PGLFN*, provided we want to stick with the
naming used in the rest of the file. At the very least, it should be
something else than what's used in glext.h :-)
I do think that only swapping the GL and FN parts of the names isn't
the best way to create a different name.