fix g++.dg/init/new4.C

[Richard Kenner]

    > How did you test Ada?
 
    I looked at the bug boxes and traced them back to something else.
 
;-)
 
    > Does it bootstrap for you?
 
    Not even close.
 
Hmm... I'm going to check that it still does for me before I change
anything else.  I've heard it doesn't on x86.  I'm on x86_64.  What
target ar you using?
 
    variable_size would error.
 
    Looking at this more afterward it seems as if I could have set
    cfun->x_dont_save_pending_sizes_p and it would have done what I
    wanted.  I'll probably clean that up soon.
 
I thought you were talking about *outside* function context?
 
And ada doesn't set that at all (though I think it clearly should).