Fix crash in -var-delete

[Nick Roberts]

 > @@ -1292,6 +1292,8 @@ delete_variable_1 (struct cpstack **resu
 >    for (i = 0; i < VEC_length (varobj_p, var->children); ++i)
 >      {   
 >        varobj_p child = VEC_index (varobj_p, var->children, i);
 > +      if (!child)
 > +	continue;
 >        if (!remove_from_parent_p)
 >  	child->parent = NULL;

Should child not get removed from the list of its parents' children when
deleted first time round?  Then checking for child shouldn't be necessary.

-- 
Nick                                           http://www.inet.net.nz/~nickrob