[PATCH] Builtins and C++ and such (take 3)

[Mark Mitchell]

> Tested on i686-pc-linux-gnu.  Mark and Ben, does this work for you?

Good -- this is what I was after.  In general, setting RTL is expensive
in terms of compile-time: you have to mangle names and such.  So,
we've worked hard to avoid creating RTL for functions that don't need
it.  This new patch, which affects only functions that are builtins
doesn't worry me: there aren't that many builtins.

Applied mainline and branch.

--
Mark Mitchell                   mark@codesourcery.com
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