move TexturesUsed[] into gl_program since vertex programs/shaders can use textures nowadays
diff --git a/src/mesa/shader/arbprogparse.c b/src/mesa/shader/arbprogparse.c
index 7a87bf0..80e342e 100644
--- a/src/mesa/shader/arbprogparse.c
+++ b/src/mesa/shader/arbprogparse.c
@@ -4038,7 +4038,7 @@
    program->Base.InputsRead      = ap.Base.InputsRead;
    program->Base.OutputsWritten  = ap.Base.OutputsWritten;
    for (i = 0; i < MAX_TEXTURE_IMAGE_UNITS; i++)
-      program->TexturesUsed[i] = ap.TexturesUsed[i];
+      program->Base.TexturesUsed[i] = ap.TexturesUsed[i];
    program->FogOption          = ap.FogOption;
 
    if (program->Base.Instructions)