[PATCH] Fix C++/21645, ICE in cxx_types_compatible_p

[Andrew Pinski <pinskia at physics dot uc dot edu>]

The problem here is that when we clone a function, we forget to copy
the correct type for the arguments so we get a crash when we copy
the body of the function as we are creating an INDIRECT_REF of a record
type which is just wrong.

This patch updates the TYPE of the parameters before the copying 
happens.

OK? Bootstrapped and tested on powerpc-darwin with no regressions.

Thanks,
Andrew Pinski

ChangeLog:
	* optimize.c (update_cloned_parm): Copy the TYPE also from the
	original one.

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