i965: pass gl_program to the brw_*_debug_recompile() functions

i965: pass gl_program to the brw_*_debug_recompile() functions

Rather then passing gl_shader_program.

The only field use was Name which is the same as the Id field in
gl_program.

For wm and vs we also make the functions static and move them before
the codegen functions.

This change reduces the codegen functions dependency on gl_shader_program.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>