[java] Fix builtins decls

[Andrew Haley]

Jan Hubicka writes:
 > Hi,
 > tree-profiling branch dies horribly by trying to remove
 > __builtin_predict calls since these are believed to be trapping in Java.
 > I've bootstrapped/regtested i686--linux the attached patch on
 > tree-profiling and I am testing it on mainline now too.
 > OK (once mainline unslush, as this does not counts as a regression
 > there)
 > 
 > 2005-05-22  Jan Hubicka  <jh@suse.cz>
 > 	* builtins.c (define_builtin): Accept new flags parameter.
 > 	(initialize_builtins): Mark the builtins const and nothrow accordingly.

That's fine except for __builtin_expect, which is neither const nor
nothrow.

Andrew.