st/mesa: switch tcs over to shared shader_info

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

src/mesa/program/prog_statevars.c

@@ -604,7 +604,7 @@ _mesa_fetch_state(struct gl_context *ctx, const gl_state_index state[],
 
       case STATE_TES_PATCH_VERTICES_IN:
          if (ctx->TessCtrlProgram._Current)
-            val[0].i = ctx->TessCtrlProgram._Current->VerticesOut;
+            val[0].i = ctx->TessCtrlProgram._Current->Base.info.tcs.vertices_out;
          else
             val[0].i = ctx->TessCtrlProgram.patch_vertices;
          return;